灯箱内部日光灯管的间隔应控制在（）内，大型灯箱内置的双排或多

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问题单项选择题

灯箱内部日光灯管的间隔应控制在（）内，大型灯箱内置的双排或多排灯管，应上下排间隔交错安装，以保证布光均匀。

A、200～250cm

B、2～2.5cm

C、20～25cm

D、10～15cm

答案

参考答案：C

填空题

用括号内所给单词的适当形式填空, 每空一词。

1. Air is a (mix) of gases.

2. He (seek) shelter from the rain yesterday.

3. She is very (religion) and goes to church three times a week.

4. No one may enter or leave without (permit).

5. Smoking can be (harm) to your health.

6. This project is of great (benefit) to everyone.

7. I don’t know of anything to prevent you (do) so.

8. The boy sat there, (stare) at the teacher on the stage.

9. It exploded (violent) with fire so no one dared to go close.

10. Theory must be (combine) with practice.

问答题简答题

简述发生时际法律冲突时准据法的确定.