单选题
发布日期:2021-03-22
present
prevent
avoid
provide
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机车中修时,轮箍厚度不足()mm应更换新箍。
北京希电直放站网管检测远端机标颜色为()色时是设备被占用。
下列选项哪些是生物性因素的致病因子()
受托人的法定职责是()。
机车接收线圈与其外壳间的绝缘电阻不小于()。
2013年7月,某验船师审理散装运输固体危险货物的船舶图纸,对于闭式装货处所提出审图意见,请问下列意见那条是合理的?()
善治下焦湿热或水肿痰饮兼热之证的中药是()。
属于H2受体阻断剂的是()
设向量组(Ⅰ):α(→)1=(a11,a21,a31)T,α(→)2=(a12,a22,a32)T,α(→)3=(a13,a23,a33)T;向量组(Ⅱ):β(→)1=(a11,a21,a31,a41)T,β(→)2=(a12,a22,a32,a42)T,β(→)3=(a13,a23,a33,a43)T,则( )。
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‘Good’ + morning的结果为:‘Good morning’。
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The most crucial time for any bearing with regards to lubrication is ()
英译汉:lubrication
The most crucial time for any bearing with regards to lubrication is ()