问题
单项选择题
进行扩散性能检查时应用清洁空气吹洗（）。
A、气球
B、气样室
C、导气管
D、进气口
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
进行扩散性能检查时应用清洁空气吹洗（）。
A、气球
B、气样室
C、导气管
D、进气口
参考答案：B
| 从对话后的方框中选择适当的选项补全对话。 | |
| W: Jim, what do you usually like to do after school? M: (1)___________________________ W: What else do you like doing? M: (2)___________________________ What about you? W: I like swimming, singing and dancing and so on. M: What do you like doing best? W: (3)__________________________ M: I think it's a waste of time to hang out. W: (4)__________________________ It's the best way to relax. M: Maybe you're right.
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