The garden()while the Greens were away from home.
A. took good care of
B. was taken good care
C. was taken good care of
D. was taking good care
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反应系统气密时,流程自始至终都不变。
A. 正确
B. 错误
测量两半箱体同心的孔,应使用()量具。
A. 千分尺
B. 百分表
C. 试棒
D. 杠杆表
代理远期结售汇交割完成后生成的材料是()
A. 客户回单
B. 业务交易单
C. 结汇证明书
D. 结售汇水单