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A.
B.
C.
D.
参考答案:D
The doctors spent a long time in________ her, and at last she was________ .[ ]
A. treating; treated
B. curing; cured
C. treating; cured
D. curing; treated
以下对剪切机的操作规定,哪项是错误的?()
A.操作前要进行空车试转
B.操作前,为保证准确应用手直接帮助送料
C.电动机不准带负荷驱动
D.电动机开车前应将离合器拖开