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【单选题】
在一次歌手大奖赛上,七位评委为歌手打出的分数如下:9.4,8.4 ,9.4,9.9,9.6,9.4,9.7去掉一个最高分和一个最低分后,所剩数据的平均值和方差分别为 ( )A.
9.4，0.484
B.
9.4，0.016
C.
9.4，0.04
D.
9.5，0.016
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举一反三
【单选题】________ some teenagers don't realize is ________ difficult life can be after they get addicted to drugs.
A.
What; what a
B.
That; how
C.
What; how
D.
That; what
【单选题】If the room that the guest wants to reserve is not available, what should you say?
A.
A moment, please. I’ll check the room availability.
B.
Thank you for waiting! A deluxe twin is available for those days.
C.
I’m afraid that single rooms are fully booked. How about a double room instead?
【简答题】设 , ,且 两两互不相容,则
【单选题】The young man was______.
A.
addicted to drinking
B.
addicted to drink
C.
addicted on drinking.
D.
addicted in drinking
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