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【简答题】
根据测量电路中的几个例题,推导书本P45表3-2中,序号3,UBD的输出值?
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参考答案:
举一反三
【单选题】The final step in the control process is to:
A.
initiate corrective action.
B.
measure actual performance.
C.
establish the standards of performance.
D.
compare actual performance to the standards.
【单选题】The station was crowded, and Alice couldn’t see Dave_________.
A.
anywhere          
B.
everywhere                 
C.
nowhere          D  somewhere
【单选题】低压配电设备不包括( )。
A.
电度表
B.
低压配电箱
C.
开关
D.
熔断器
【简答题】__________,the thief was caught by the students. A.There being nowhere to hide B.There was nowhere to hide C.There is nowhere to hide D.There nowhere to hide
【单选题】My handkerchief must be______but I can't find it.
A.
anywhere
B.
where
C.
somewhere
D.
nowhere
【单选题】—What’s wrong? —I can’t find my watch .
A.
anywhere
B.
somewhere
C.
everywhere
D.
nowhere
【单选题】The final step in the marketing process is ________.
A.
creating customer loyalty
B.
capturing value from customers
C.
creating customer lifetime value
D.
designing a customer-driven marketing strategy
E.
understanding the marketplace
【多选题】以下关于桥梁分类的说法正确的是()。
A.
按结构体系及其受力特点,可将桥梁分为梁、拱、索三种基本体系,以及由基本体系与其他基本体系或基本构件(塔、柱、斜索等)形成的组合体系
B.
按技术等级,可将桥梁分为汽车专用桥梁,一般桥梁
C.
按跨越障碍的性质,可将桥梁分为跨河桥、跨线桥(立体交叉)、高架桥和栈桥
D.
按上部结构的行车道位置,可将桥梁分为上承式桥、下承式桥和中承式桥
【单选题】The final step in the marketing process is ________.
A.
capturing value from customers
B.
creating customer delight
C.
creating customer lifetime value
D.
understanding the marketplace
E.
designing a customer-driven marketing strategy
【单选题】移动通信基站的直流供电系统不包括以下设备( )。
A.
变压器
B.
蓄电池组
C.
高频开关电源
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