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【单选题】
—— _______ you _______ your breakfast? —— Y es, I have. —— w hen ______ you ______it? ——An hour agoA.
Have; have; have; had
B.
Did; have; did; have
C.
Have; had ;did; have
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【简答题】随机变量ξ的分布列为 ξ 0 1 x P 1 5 p 3 10 且Eξ=1.1，则p=______；x=______．
【单选题】The government is trying to go something to＿better understanding between the two countries．
A.
raise
B.
promote
C.
heighten
D.
increase
【单选题】设随机变量X的概率分布为P（X=k）= m k(k+1) （k=1，2，3，4，5），则 P( 3 2 ＜X＜ 7 2 ) =（ ）
A.
3 10
B.
2 5
C.
1 2
D.
5 6
【单选题】why does the government want the students to go to university? which of the following is NOT true?
A.
the government wants the students to experience the joy of learning.
B.
the government wants the students to get a degree which they dream of.
C.
the government wants the students to experienced the thrill of graduation
D.
the government wants the students to have promising future after graduation
【简答题】P: Hongkong Centre , Pacific 193 1 C:Pacific193,HongkongCentre,”traffic,traffic,traffic,taffic” P:Center,Pacific193,we have indications of 2 that appears to be 3 towards us , can you confirm that tra...
【单选题】Why does the government want the students to go to university? Which of the following is NOT true?
A.
The government wants the students to experience the joy of learning.
B.
The government wants the students to get a degree which they dream of.
C.
The government wants the students to experience the thrill of graduation.
D.
The government wants the students to have promising future after graduation.
相关题目：
【单选题】设随机变量X的概率分布为P（X=k）= m k(k+1) （k=1，2，3，4，5），则 P( 3 2 ＜X＜ 7 2 ) =（ ）
A.
3 10
B.
2 5
C.
1 2
D.
5 6