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【判断题】
目前认为激光对生物机体的作用主要有热效应、电磁效应、光化效应和机械应力效应。（ ）A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】What is NOT mentioned about the unit?
A.
It has a space for a large television.
B.
It features adjustable shelving.
C.
It is available in two colors.
D.
It can accommodate several devices.
【单选题】Unit 2 Reading What is this passage mainly about?
A.
How to greet customers.
B.
How to serve dishes.
C.
How to take customers' orders.
【单选题】You need to keep an eye out during your speech for audience __________.
A.
support
B.
feedback
C.
appreciation
D.
criticism
【判断题】During your speech, you can turn off the light for better projecting effects.
A.
正确
B.
错误
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