红外测温仪也可以透过玻璃进行测温。
参考答案:错
–The floor is dirty. Can anyone clean it?
–_____I do it all the time.
A.Don’t mention it.
B.Why you?
C.Not sure
D.Not me again.
消费者根据能效产标识购买哪一级的家用电器为好?()
A、1级产品
B、2级产品
C、3级产品