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【多选题】
在新的历史起点上坚持和发展中国特色社会主义,我们党面临哪些考验? ()A.
执政考验
B.
改革开放考验
C.
市场经济考验
D.
外部环境考验
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反馈参考答案：
举一反三
【单选题】The two friends _____ on the Internet for three hours, and they would go on till the next morning.
A.
had been chatting
B.
had chatted
C.
were chatting
D.
has been chatting
【单选题】Three friends decided to sail around the world in a small yacht(游艇). They loaded it with food and water and set off. They traveled to many beautiful places, and were having a wonderful time. Until one...
A.
many souvenirs(纪念品) with them
B.
no medical supplies with them
C.
a large crew with them
D.
many provisions(食物贮备) with them
【简答题】. 为什么说工人、农民、知识分子是建设中国特色社会主义的重要依靠力量?
【单选题】By 2020, scientists _____ a cure for canner.
A.
had found
B.
will have found
C.
are finding
D.
have been finding
【简答题】一台绕线式三相异步电动机的额定数据为：P N =75kW，n N =720r/min，λ N =2.4，E 2N =213V，I 2N =220A，定、转子均为Y接，该电机拖动位能性恒转矩负载，大小为T L =T N ，忽略传动机构转矩损耗，试求：
【单选题】Three years ________ a long time to be cut off from contact with your friends.
A.
are
B.
were
C.
is
D.
be
【简答题】胫骨前肌•功能:踝关节足背屈、
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