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