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【单选题】
五四运动取得初步胜利的决定性因素是A.
青年学生发挥了先锋作用
B.
工人阶级登上了政治舞台，发挥了主力军的作用
C.
先进知识分子指导、推动并领导
D.
广大人民的彻底觉醒
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举一反三
【单选题】What made Joseph give up his dream of buying the Lego Death Star?
A.
The extremely high price of the toy.
B.
The denying attitude of the father.
C.
The time he needs to save up the money.
D.
The change of his focus of interest.
【单选题】It was a pity that he __ blind, but to the joy of his family, his dream of becoming a musician _____ true at last.
A.
came; came
B.
went; went
C.
came; went
D.
went; came
【单选题】Ryan,with the help of others, is fulfilling his dream of help African peopleto____________
A.
make new materials
B.
preserve wetland and animals
C.
have clean air
D.
have clean water
E.
collect cigarette butts
F.
collect disposed oil
【简答题】设三事件A、B、C两两独立，则A、B、C相互独立的充要条件为( )． (a) A与BC独立 (b) AB与A∪C独立 (c) AB与AC独立 (d) A∪B与A∪C独立
【单选题】设事件A，B，C两两独立，则事件A，B，C相互独立的充要条件是( )．
A.
A与BC相互独立
B.
AB与A+C相互独立
C.
AB与AC相互独立
D.
A+B与A+C相互独立．
【简答题】Ryan,with the help of others,is fulfilling his dream of help African people to ___________．
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