为了防止对设备产生工频干扰,对信息技术设备供电电源宜采用下列接地系统中的( )。

题型:多项选择题

问题:

为了防止对设备产生工频干扰,对信息技术设备供电电源宜采用下列接地系统中的( )。

A.TN-S
B.TN-S
C.TT
D.TN-C

考点:注册电气工程师供配电专业注册电气工程师专业考试(供配电专业)
题型:多项选择题

In Canada and the United States, people enjoy entertaining(请客) at home. They often invites friends for a meal, a party or just for coffee and conversation.

Here are the kinds of things people say when they invite someone to their homes: “Would you like to come over for dinner this Saturday night?” “Hey, we’re having a party on Friday. Can you come?”

To answer an invitation, either say thank you and accept or say you are sorry and give an excuse. “Thanks, I’d love to. What time would you like me to come?” or “ Oh, sorry. I’ve tickets for a movie.”

Sometimes, however, people in the west use expressions(语句) that sound like invitation but which are not real invitation. For example, “Please come over for a drink sometime.” “Why not get together for a party sometime?” or “Why don’t you come over and see us sometime soon?” They are really polite ways of ending a conversation. They are not real invitations because they don’t mention(提到、涉及) a certain time or date. They just show that the person is trying to be friendly. To answer expressions like this, people just say, “Sure, that would be great!” or “OK! Thanks.”

So next time when you hear what sounds like an invitation, listen carefully. Is it a real invitation or is the person just being friendly?

小题1:Why do Canadians and Americans often invite friends for meals at home?

A.Because they have modern and beautiful houses.

B.Because they can spend less money.

C.Because they enjoy entertaining at home.

D.Because they can save time.小题2:Which of the following is NOT a real invitation?

A.Please go to the concert with me some day.

B.Would you like to have a cup of tea with us this evening?

C.I’ve two tickets here. Can you go to the cinema with me?

D.If you are free now, let’s go to Wang’s for a drink.小题3:If people say, “Why not get together for a party sometime?”, you just say “__________”

A.I’m glad to hear that.

B.How about this evening?

C.Oh, sorry. I’m very busy.

D.That’s great. Thanks.小题4:People use “an unreal invitation” in order to show __________.

A.they’re trying to be friendly

B.they’re trying to make friends with others

C.they have already got ready for a party

D.their spirit of generosity小题5: The passage is mainly about __________.

A.entertainment at home

B.real invitations or not

C.expressions of starting a conversation

D.ways of ending a conversation

题型:多项选择题

疑病观念的病人,关注自己身体的各种细微变化,过分地注意健康状态。这属于()

A.注意转移

B.注意减退

C.注意涣散

D.注意狭窄

E.注意增强

题型:多项选择题

关于无形资产的后续计量,下列说法中正确的是()

A.使用寿命不确定的无形资产应该按系统合理的方法摊销

B.使用寿命不确定的无形资产,其应摊销金额应按10年摊销

C.企业无形资产摊销方法,应当反映与该项无形资产有关的经济利益的预期实现方式

D.无形资产的摊销方法只有直线法

题型:多项选择题

队列是限定在表的一端进行插入和在另一端进行删除操作的线性表。允许删除的一端称作______。

题型:多项选择题

债务人或第三人因债权人的原因而无法履行债务的情况下,将债的标的物提交给有关机关,以消灭债的关系的行为,被称为( )。

A.违约

B.提交

C.提存

D.抵消

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