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下面是四种构成蛋白质的氨基酸的结构式，下列叙述错误的是

A．构成上述氨基酸分子的基本元素是C、H、O、N

B．上述四种氨基酸的R基依次是-H、-CH₃、-CH₂OH、-CH₂COOH

C．R基中可以有氨基或羧基

D．只要含有氨基和羧基的化合物就是构成蛋白质的氨基酸

根据括号内的汉语和首字母写出英语单词，使句子通顺。

1. We have a new (梳妆台) _____________.

2. I put my books on the (书橱) _____________.

3. The (植物) ___________ is near the window.

4. Can you (拿来) ___________ me a pencil?

5. This is a (相片) ___________ of my family.

6. —W__________ is my clock, do you know?    

    —It's on the desk.

7. The v___________ tape is on the table.

8. Your brother needs the dictionary. Can you t___________ it to him?

9. I have a small r___________, but it's very nice.

10. My keys are in the d____________. You can't see.

关于上颌第一磨牙排列的位置，下面哪一项是错误的（）

A.牙颈部略向远中倾斜

B.颊尖离开平面

C.近中舌尖排在平面上

D.远中舌尖离开平面

E.舌尖对准下颌牙槽嵴顶线

人体含ALT最丰富的组织是 （）

A.心肌

B.肝细胞

C.骨骼肌

D.红细胞

E.肾脏

CAM技术是利用计算机对制造过程进行设计、管理和控制的技术。( )