问题
单项选择题 A1/A2型题
固定阳极的靶面倾角一般为（）
A.5°
B.8°
C.10°
D.20°
E.30°
答案
参考答案：D
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固定阳极的靶面倾角一般为（）
A.5°
B.8°
C.10°
D.20°
E.30°
参考答案：D
| 从方框中选择最佳选项完成对话，有两项多余。 | |
B: Maybe you could take part in after school classes on weekends. A: 2 I have to do my homework onweekends. B: Well, you could ask your friends for help. A: 3 B: You should say sorry to your friend. A: OK. 4 B: I think you shouldn't play computer games or watch TV any more. A: 5 I'll study harder and harder from now on. |