锤造冠就位后邻接关系不良，常见原因有A．相邻牙邻面突度过大B．加蜡过少C．邻接区以下

恩格斯曾这样评价一位现实主义作家：“他的小说提供了一部法国社会特别是巴黎上流社会                                                   

包罗万象的社会史”。这位作家是     

A．雨果

B．狄更斯

C．巴尔扎克

D．易卜生

订购和使用专厂件的特点有（）。

A、价格贵，付款方便

B、价格比纯正件低，付款条件优惠，索赔方便

C、价格低，质量好，售后有保障

D、价格比较贵，索赔方便

补全对话。

      (A girl wants to buy a camera. Now she is in a shop.)

MAN: Good morning. 1_____?

GIRL: Yes, please. I'd like to buy a camera.

MAN: We have many cameras here. Some are made in. China, and some are made in other countries.

GIRL: This one looks very nice. 2_____?

MAN: In Japan.

GIRL: 3_____?

MAN: 5000 yuan. This is a digital camera.

GIRL: Wow, that's too expensive! 4_____. Do you have an ordinary one?

MAN: Sure. What about those ones?

GIRL: Well, this one looks very good. And the price is OK. Is it made in China?

MAN: Yes, it's made in Shanghai.

GIRL: OK, 5_____.

药材蓼大青叶的来源是（）

A.蓼科蓼蓝的叶

B.豆科紫苏的叶

C.蔷薇科紫苏的叶

D.茄科紫苏的叶

E.芸香科紫苏的叶

越岭隧道平面位置的选择，主要是指（）

A、隧道穿越分水岭的不同高程的垭口的选择；

B、隧道穿越分水岭的不同方向的垭口的选择；

C、隧道穿越分水的垭口时，隧道标高的选择；

D、隧道穿越分水岭的不同高程及不同方向的垭口选择。