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【单选题】
《中华人民共和国劳动法》规定用人单位应当保证劳动者每周至少休息（）A.
6小时
B.
12小时
C.
1日
D.
2日
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反馈参考答案：
举一反三
【单选题】“I know she was in because I heard her radio, but she didn’t open the door.” “She___the bell.”
A.
may not be hearing
B.
may not have heard
C.
must not have heard
D.
must not be hearing
【单选题】you must have ____ Beyonce, and she is a very famous singer who sang a song for the 77th Annual Academy.
A.
heard from
B.
heard
C.
heard on
D.
heard about
【单选题】You must have ________ Beyonce, and she is a very famous singer who sang a song for the 77th Annual Academy Awards (第77届奥斯卡金像奖颁奖典礼). [ ]
A.
heard from
B.
heard
C.
heard on
D.
heard about
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