氧气从肺泡进入肺泡毛细血管,属于细胞膜的哪种运输方式()。 A.简单扩散 B.主 发布时间:2018-08-14 02:45 │ 来源:www.tikuol.com 题型:单项选择题 问题: 氧气从肺泡进入肺泡毛细血管,属于细胞膜的哪种运输方式()。A.简单扩散 B.主动运输 C.易化扩散 D.胞吞作用
题型:单项选择题 要修饰Word文档中的某些文字,()的操作是正确的。A.选中要修饰的文字,在菜单中选择[视图]→[阅读版式]B.选中要修饰的文字,在菜单中选择[格式]→[字体]C.选中要修饰的文字,在菜单中选择[编辑]→[全选]D.选中要修饰的文字,在菜单中选择[编辑]→[字体] 查看答案
题型:单项选择题 The goods which have entered the territory, approved by the Customs as items for which no formalities are performed in the way of duty payment, and will be reshipped out of the territory after being stored, processed or assembled in the territory are defined, as ______.A. bonded goods B. through goodsC. transshipment goods D. transit goods 查看答案