YJ17供料系统除梗机构调整时顺时针方向转动两个螺钉以（）挡板。A.摆开 B.倾斜

修改下列病句。（4分）                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     

小题1:我们的报纸、杂志、电视和一切出版物，更有责任树立榜样，杜绝用字不规范的现象，增强使用语言文字的规范意识。

小题2:垃圾车清理垃圾时不熄火，长时间发出噪声与废气，对住户的身心影响很大。

在菜单设计中，可以在定义菜单名称时为菜单项指定一个访问键。指定访问键为“x”的菜单项名称定义是( )。

A．综合查询(\＞x)

B．综合查询(/＞X)

C．综合查询(\＜x)

D．综合查询(/＜x)

危险药物是指（）

A.麻醉药物

B.精神药物

C.镇静药物

D.细胞毒药物

E.抗菌药物

    北方地区历史文化悠久，________、________、________、________为著名古都，名胜古迹众多，人文旅游资源及其丰富。

乘数原理