题目内容

Incopyingthispaper,Becarefulnottoleave()Anywords.

A. out
B. alone
C. off
D. behind

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下列属于电梯安全装置的有()

A. 限速器
B. 安全钳
C. 极限开关
D. 强迫缓速开关

Whendoingthewash,itisimportantto()whiteandcoloredclothing.

A. compare
B. separate
C. establish
D. contrast

以下哪种平开门竖框需要搭配斜座拉手?()

A. YL950
B. YL780
C. YL760
D. YL750

Wefinally()anagreementafteralotofhardargument.

A. reached
B. did
C. arrived
D. drove

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