Please match the questions with the answers. 1) What can I do for you?2) What’s the rate?3) How would you like to make payment?4) Do you have any carry-ons?5) What’s the weight limit?6) May I confirm your departure date?
A.
It’s 27th.
B.
By Credit Card.
C.
It’s 120 US dollars per night.
D.
It’s 44 pounds.
E.
Yes, a small bag-pack and a laptop.
F.
I would like to book a room.答案填写格式举例:FEDCBA
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【单选题】设离散型随机变量X的分布列如下,则E(3X+5)是( )。 X -2 0 2 p 0.4 0.3 0.3