下列哪种物质为终致癌物()
In the first year or so of Web
business, most of the action has revolved around efforts to tap the consumer
market. More recently, as the Web proved to be more than a fashion, companies
have started to buy and sell products and services with one another. Such
business-to-business sales make sense because businesspeople typically know what
product they’re looking for. However, many companies still hesitate to use the Web because of doubts about its reliability. "Businesses need to feel they can trust the pathway between them and the supplier," says senior analyst Blane Erwin of Forrester Research. Some companies are limiting the risk by conducting online transactions only with established business partners. Another major shift in the model for Internet commerce concerns the technology availab A. A.the technology is popular with many Web users B.businesses have faith in the reliability of online transactions C.there is a radical change in strategy D.it is accessible limitedly to established partners [判断题]检查GYK工况。分别在车辆两端操作台切换车辆换向手柄,确定有权端DMI工况显示与车辆换向手柄方向一致;分别在车辆两端操作台切换档位,确定切换到空挡时DMI显示空挡,有档位信号输入时DMI空挡灯熄灭。
A.正确 B.错误 [简答题]下方表述正确的是
[判断题]用户变、配电站的工作许可人应是具有一定经验的高压电气工作人员。
A.正确 B.错误 [单选题]判断电流产生磁场方向用( )。
A.左手定则 B.右手定则 C.安培定则 D.楞次定律 [填空题]红细胞有没有细胞核?
[单选题]下列关于勤劳节俭的论述中,正确的选项是( )。
A.勤劳一定能使人致富 B.勤劳节俭有利于企业持续发展 C.新时代需要巧干,不需要勤劳 D.新时代需要创造,不需要节俭 [多选题]编组、区段站及作业量较大中间站(),停留在不超过2.5‰坡道线路且停留时间不超过60min时,不另采取防溜措施。
A.到达列车(不含图定乘坐旅客或路内通勤以外的路用列车、救援列车)摘开本务机车停留的车列(5辆及以下除外) B.列检作业后全列自动制动机保持制动状态的待发车体 C.出库客车底 D.到达列车待解车列 [单选题]保价的行李、包裹发生运输变更时,保价费( )。
A.不退还 B.全部退还 C.不补不退 D.部分退还 [单选题]“适用于发布.传达要求下级机关执行和有关单位周知或者执行的事项,批转.转发公文”的是( )。
A.意见 B.通报 C.议案 D.通知 [单选题]以下关于境外机构境内开立的银行结算账户说法不正确的是( )
A.银行应对境外机构的本、外币账户以及境外机构境内机构的银行结算账户进行有效区分、单独管理。 B.银行在编制境外机构人民币银行结算账户账号时,应统一加前缀“NRA”。 C.境外机构符合开立银行结算账户条件的,可选择境内任意一家银行开立银行结算账户。 D.境外机构银行结算账户可以用于办理现金业务。 [多选题]物料配比最优体现在( )。
A.A、工艺指标 B.B、反应物组成 C.C、反应效果 D.D、能源消耗 E.E、产品质量 F.F、原料消耗 [多选题]瞬时量测量是指测量当前各分相( )、( )有效值及当前电网( )。
A.电流 B.电压 C.失压 D.频率 我来回答: 提交
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