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A.电机功率不一样 B.XCF带吸奖管,KYF不带吸奖管 C.叶轮直径不一样 D.以上都是 [多选题]计算机病毒的特点包括
A.破坏性 B.隐蔽性 C.潜伏性 D.传染性 [判断题]当听到轴温报警器报警时,可以随意关闭,应立即通知车辆乘务员处置
A.正确 B.错误 [单选题]下列适用于内储压式气体灭火系统的是( )。
A.IG-541灭火系统 B.IG-100灭火系统 C.七氟丙烷灭火系统 D.二氧化碳灭火系统 [单项选择]大成公司2006年货币资金平均1741492元,应收账款平均2194640元,存货平均 4988760元,其他流动资产平均302000元,长期投资平均500000元,固定资产平均 5918000元,无形资产平均1080000元,主营业务收入净额2560000元,则其总资产周转率为( )。
A. 12.06% B. 15.31% C. 15.59% D. 16.45% [单项选择]The suggestion ______ all right.
[单选题]降低钢轨内部温度应力的关键,在于如何控制( )
A.最高温度 B.最低温度 C.轨温变化幅度 D.中间轨温 [单选题]发生人员触电、跌落或者受伤后要及时拨打()并告知工作负责人。
A.120 B.119 C.110 [多项选择]在软弱围岩地段施工时,应遵守的原则有( )。
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