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问题 填空题

设置计算机发出嘟嘟声的宏操作是 【7】 。

答案

参考答案：Beep

解析： 本题考查提示用户操作。Beep可以通过个人计算机的扬声器发出嘟嘟声。

填空题

层状偏析不仅造成焊缝力学性能的不均匀性，还可能沿层状线形成裂纹或（）。
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单项选择题

Questions


·Look at the ten statements for this part.
·You will hear a story about communication through time.
·Decide whetheryou think each statement is right(R) wrong(W) or not mentioned(NM).
·You will listen to it twice.

The meaning of time is the same in different parts of the world.

A. Right

B. Wrong

C. Not Mentioned
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