既可作为顶棚B1级和墙面B1级的装修材料是（）。A.纸面石膏板 B.彩色阻燃人造板

根据句意和首字母提示，填写单词。

1. —Do you know the o _____ of the motorbike?

    —Anna. Don't you know?

2. Don't you know me? I live next door. We are  n_____ .

3. People all over China are w _____ about the situation in Wenchuan.

4. If we are lucky enough we can c _____ the early bus.

5. The F_____  Dinner (《最后的晚餐》) is one of the most famous paintings by Leonardo da Vinci (达

    芬奇).

髋关节外展的正常角度为（）

A.0°～150°

B.0°～45°

C.45°～60°

D.0°～25°

E.90°

生物半衰期

缺失，唇侧牙槽嵴丰满，突度较大，在设计观测线时，模型倾斜应（）。

A．向后

B．向左侧

C．向前

D．向右侧

E．以上都不对