皮皮学，免费搜题
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搜题
【单选题】
主机冲车前,值班水手应重点检查方面有A.
货物是否绑扎好
B.
螺旋桨周围是否清爽
C.
带缆是否全部解开
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】主轴转速n(r/min)与切削速度vm/min)的关系表达式
A.
n=TvD/1000
B.
n=100OTTVD
C.
V=TnD/1000
D.
V=1000TnD
【单选题】What does Lucia Dunn think might be a risk for the credit card issuing banks?
A.
They go bankrupt as a result of over-lending.
B.
They lose large numbers of their regular clients.
C.
Their clients leave their debts unpaid upon death.
D.
Their interest rates have to be reduced now and then.
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