利用计算机辅助设计与制造技术，进行产品的设计和制造，可以提高

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问题单项选择题

利用计算机辅助设计与制造技术，进行产品的设计和制造，可以提高产品质量，缩短产品研制周期，它又称为（）。

A、CAD／CAM

B、CD／CM

C、CAD/COM

D、CAD/CM

答案

参考答案：A

填空题

根据括号内的汉语提示，完成句子。

1. When he was in his ______ (四十多岁), he took an active part in the battle against the Qing dynasty.

2. There are many new______ (发现) in recent years.

3. Spitting in public is ______ (禁止), everybody should have good habits.

4. It's ______ (必要的) for us to master computer technology.

5. ______ (大体) speaking, different star signs have different characteristics.

6. An old man was found ______ (躺在) on the road.

问答题简答题

节育手术中常见并发症有哪些？