参加学术报告应准时，见到朋友时可以向朋友打招呼。_爱下问搜题

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问题判断题

参加学术报告应准时，见到朋友时可以向朋友打招呼。

答案

参考答案：错

问答题

Part 2

·Suppose there is a kindergarten in .your hometown and you are asked to write a copy for it. You have to provide information on the special features of it:
☆ The location is beside the quiet, and beautiful park.
☆ The commuting is convenient.
☆ The facilities are enough.
☆ The service is fine.
☆ The fee for it is ￥2000 per year.

单项选择题

当空气中含氧量降低到（）时，人就会因缺氧晕倒直至死亡。

A.16%

B.10%

C.18%