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【单选题】
已知随机变量X的分布列为 X 1 2 3 P 0.2 0.4 0.4 则E(6X＋8)＝( )A.
13.2
B.
21.2
C.
20.2
D.
22.2
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举一反三
【简答题】A．The woman is tired of the man's complaints of math. B．The woman is not used to the man's bragging about math. C．The man used to forget to turn off the lights. D．The man is afraid of annoying his fat...
【单选题】Before a mediation can take place:
A.
both parties to a dispute must consent to the mediation.
B.
the mediator must be acceptable to both parties.
C.
there must be a dispute.
D.
All of the above.
【简答题】调解(mediation)
【单选题】离子选择性电极在一段时间内不用或新电极在使用前必须进行( )。
A.
活化处理
B.
用被测浓溶液浸泡
C.
在蒸馏水中浸泡24小时以下
D.
在NaF溶液中浸泡24小时以上
【多选题】Before a mediation can take place:
A.
both parties to a dispute must consent to the mediation.
B.
the mediator must be acceptable to both parties.
C.
there must be a dispute.
D.
None of the above.
【多选题】Complaints can be made by __________.
A.
telephone call
B.
letter
C.
mail
D.
other method online
【单选题】What can we infer from the last paragraph?
A.
It is natural for students to make complaints about university education.
B.
Few students are willing to bear the burden of debt incurred at university.
C.
University education is becoming attractive to students who can afford it.
D.
The prestige of the university influences employers’ recruitment decisions.
【简答题】无压隧洞洞身断面形式主要有哪些？有压隧洞洞身断面为何常采用圆形？
【简答题】I felt ________ (relax) after I had spoken.
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