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【简答题】
某大楼均用日光灯照明,且对称地接在线电压为380V的三相电源上,每相负载的电阻是6Ω,感抗是8Ω,相电压是220V,求负载的功率因数 和所有负载消耗的有功功率 W
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【单选题】Consider the following argument: “It’s wrong to drive in excess of the speed limit, even in a case where you’re rushing someone to the hospital to save their life. If everyone drove in excess of the s...
A.
It’s wrong to lie even when an insane killer is asking you where you keep your guns. If everyone lied, then no one could ever trust what anyone else says, and we would lose the ability to share information through verbal exchange. So you should never lie under any circumstances.
B.
It’s wrong to hug and kiss your child, even when they ask you to do so. If everyone did that, then children would come to demand affection even when their parents are occupied and cannot offer affection. So you should never express affection to your child under any circumstances.
C.
It’s wrong to reply to your emails, even when they are urgent. If everyone always replied to all of the emails they receive, the total volume of email in the world would very soon swamp the total computational power of all of the world’s computers. So we should never reply to any of our emails.
D.
It’s wrong to eat potato chips, even when you want to. If everyone ate nothing but potato chips all the time, we would all be extremely malnourished, and the human species would soon die off. Therefore, you should never eat potato chips under any circumstances.
E.
(a) and (d) but not (b) or (c)
【单选题】Consider the following argument: “It’s wrong to drive in excess of the speed limit, even in a case where you’re rushing someone to the hospital to save their life. If everyone drove in excess of the s...
A.
It’s wrong to lie even when an insane killer is asking you where you keep your guns. If everyone lied, then no one could ever trust what anyone else says, and we would lose the ability to share information through verbal exchange. So you should never lie under any circumstances.
B.
It’s wrong to hug and kiss your child, even when they ask you to do so. If everyone did that, then children would come to demand affection even when their parents are occupied and cannot offer affection. So you should never express affection to your child under any circumstances.
C.
It’s wrong to reply to your emails, even when they are urgent. If everyone always replied to all of the emails they receive, the total volume of email in the world would very soon swamp the total computational power of all of the world’s computers. So we should never reply to any of our emails.
D.
It’s wrong to eat potato chips, even when you want to. If everyone ate nothing but potato chips all the time, we would all be extremely malnourished, and the human species would soon die off. Therefore, you should never eat potato chips under any circumstances.
E.
(a) and (d) but not (b) or (c)
【多选题】Consider the following argument: “It’s wrong to drive in excess of the speed limit, even in a case where you’re rushing someone to the hospital to save their life. If everyone drove in excess of the s...
A.
It’s wrong to lie even when an insane killer is asking you where you keep your guns. If everyone lied, then no one could ever trust what anyone else says, and we would lose the ability to share information through verbal exchange. So you should never lie under any circumstances.
B.
It’s wrong to hug and kiss your child, even when they ask you to do so. If everyone did that, then children would come to demand affection even when their parents are occupied and cannot offer affection. So you should never express affection to your child under any circumstances.
C.
It’s wrong to reply to your emails, even when they are urgent. If everyone always replied to all of the emails they receive, the total volume of email in the world would very soon swamp the total computational power of all of the world’s computers. So we should never reply to any of our emails.
D.
It’s wrong to eat potato chips, even when you want to. If everyone ate nothing but potato chips all the time, we would all be extremely malnourished, and the human species would soon die off. Therefore, you should never eat potato chips under any circumstances.
E.
(a) and (d) but not (b) or (c)
【多选题】由于组合旅游团游客互不相识,柱格爱好各异,凝集力不强.在游览中很容易走散,在游览前导游员要反复提醒他们( )
A.
注意安全
B.
相互帮助
C.
集合时间
D.
集合地点
E.
入口位置
【单选题】听力原文：M: Did you buy a birthday present for your brother? W: Not yet, but I've been thinking about getting him a record, lie likes classical music. Q: Which record would the woman's brother like best? ...
A.
The Best of Jazz.
B.
Christmas Carols.
C.
Classical Music.
D.
Rock Music Collection.
【单选题】Consider the following argument: “It’s wrong to drive in excess of the speed limit, even in a case where you’re rushing someone to the hospital to save their life. If everyone drove in excess of the s...
A.
It’s wrong to lie even when an insane killer is asking you where you keep your guns. If everyone lied, then no one could ever trust what anyone else says, and we would lose the ability to share information through verbal exchange. So you should never lie under any circumstances.
B.
It’s wrong to hug and kiss your child, even when they ask you to do so. If everyone did that, then children would come to demand affection even when their parents are occupied and cannot offer affection. So you should never express affection to your child under any circumstances.
C.
It’s wrong to reply to your emails, even when they are urgent. If everyone always replied to all of the emails they receive, the total volume of email in the world would very soon swamp the total computational power of all of the world’s computers. So we should never reply to any of our emails.
D.
It’s wrong to eat potato chips, even when you want to. If everyone ate nothing but potato chips all the time, we would all be extremely malnourished, and the human species would soon die off. Therefore, you should never eat potato chips under any circumstances.
E.
(a) and (d) but not (b) or (c)
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