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【单选题】
She _ royal stories for the BBC when she was  a reporter. [     ]
A.
reported to
B.
reported on
C.
reporting on
D.
was reported
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参考答案:
举一反三
【判断题】行程开关是一种将机械信号转换为电信号,以控制运动部件的位置和行程的自动电器。
A.
正确
B.
错误
【单选题】下列属于非概率抽样方法的是( )
A.
系统抽样
B.
分层抽样
C.
整群抽样
D.
偶遇抽样
E.
单纯随机抽样
【单选题】下列属于非概率抽样方法的是( )
A.
系统抽样
B.
分层抽样
C.
整群抽样
D.
方便抽样
E.
单纯随机抽样
【单选题】下列属于非概率抽样方法的是
A.
系统抽样
B.
单纯随机抽样
C.
整群抽样
D.
目的抽样
【单选题】The metal company______it would buy a stake in Herbert Platinum, Ltd.
A.
tried
B.
talked
C.
revealed
D.
exclaimed
【单选题】听力原文: Mike Tyson's heavyweight fight with Clifford Etienne was postponed Monday, the former-champion saying that he had the flu and was not fit to fight. 'I'm sorry to let down all my fans in Memphis ...
A.
Monday.
B.
Saturday.
C.
Sunday.
D.
Tuesday.
【单选题】下列属于非概率抽样方法的是
A.
单纯随机抽样
B.
机械抽样
C.
雪球抽样
D.
整群抽样
【判断题】两点受力的构件都是二力杆。
A.
正确
B.
错误
【单选题】It can be inferred from the news that ______.
A.
people have been doubtful about Tyson's boxing future
B.
Mike Tyson is not fit to fight as a heavyweight boxer any more
C.
there will be immediate rescheduling for the 10-round bout
D.
it is fight promoter Showtime that issue the postponement
【单选题】在接团当天,地陪应及早与有关方面练习,了解旅游团( )。
A.
实际人数
B.
人员情况
C.
特殊要求
D.
抵达准确时间
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