题目内容

只要是注射成型产品,都要退火处理。

A. 对
B. 错

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温度略低于料筒(前端)温度,防止“流涎现象”。

A. 对
B. 错

控制模具温度实为控制冷却速度。

A. 对
B. 错

模具温度越高,制品内应力越高。

A. 对
B. 错

What is NOT happen to interpersonal communication(人际交往) nowadays according to the passage?

A. People have deeper relationships
B. People use the Internet to get in touch with others.
C. People like texting and messaging more than talking on a phone.
D. People have more acquaintances through electronic communication.

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