硬横跨梁安装应呈水平状态，其梁底面距最高轨面的距离应符合设计

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问题单项选择题

硬横跨梁安装应呈水平状态，其梁底面距最高轨面的距离应符合设计规定，允许偏差（）。

（A）±100mm

（B）-50～+lOOmm

（C）+100mm

（D）±200mm

答案

参考答案：C

填空题

动词填空。

1. John is still in hospital and the doctors will do all they can _________ (save) his life.

2. My brother _________ (educate) in the United States in 2008.

3. Smoking _________ (affect) people's health. You'd better give up smoking.

4. When I entered her room, she _________ (download) some information.

5. By studying hard and not _________ (give) up, you will succeed.

6. This is the best film that he _________ (see).

7. I didn't understand the problem until it _________ (explain) a third time.

8. He promised he _________ (treat) every student equally.

9. When he came to visit me, I _________ just _________ (go) out. So we had only a few words.

10. It is common that some people prefer _________ (sell) their old houses to buy new ones.

填空题

工业机器人系统由三大部分组成（）、（）、（）。