如图甲、乙电路中,电阻R和自感线圈L的电阻都很小,接通S,使电路达到稳定,灯泡A

题型:不定项选择

问题:

如图甲、乙电路中,电阻R和自感线圈L的电阻都很小,接通S,使电路达到稳定,灯泡A发光,则

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A.在电路甲中,断开S,A将渐渐变暗

B.在电路甲中,断开S,A将先变得更亮,然后渐渐变暗

C.在电路乙中,断开S,A将渐渐变暗

D.在电路乙中,断开S,A将先变得更亮,然后渐渐变暗

考点:自感现象
题型:不定项选择

When Mark first arrived in Thailand, he saw an old man selling something cheap in the street of Chiang Mai. The old man was one of the poor people in Chiang Mai and there was no difference from beggars (乞丐). Most of them were some lonely old people. Their life had no support.

Mark was a kind man, so he gave some changes to him without thinking. The old man told him to pick something he liked. Mark didn’t choose anything and left.

But the old man followed him closely. AT first, Mark didn’t think a lot, just supposing he wanted to go home. But when he went out very far saw the old man still following him, he was a bit tired, thinking the old man must feel he was kind and wanted to beg more money from him.

Mark turned back and told him not to follow him because he hadn’t much money. But the old man seemed not to understand what he meant, still following him. The bag on his back made him sweat (流汗) all over.

Mark happened to meet his Thai colleague (同事) in the street and his colleague heard this. The colleague turned to ask why the old man was following his friend.

The old man said out of breath, “My son, you gave me money, but didn’t want my things, so I have to give you something. I see you are a foreigner, likely not to familiar with here. I just want to follow you and show you the way. All I can do for you is this.”

Mark was shocked. He said he didn’t know why, when he felt the old man was just like his father.

小题1:What did Mark do when he first found the old man following him?

A.He didn’t think a lot and went on walking

B.He asked the old man why he was following him

C.He was shocked and asked his colleague to come.

D.He gave him more money without thinking.小题2:The old man followed Mark closely         .

A.because he wanted to go back home

B.because he wanted to sell more things to Mark

C.because he wanted to beg more money

D.because he wanted to show Mark the way小题3:Which of the following is true according to the passage?

A.Mark didn’t like this old man at all.

B.The old man was Mark’s father.

C.The old man sold something cheap to make a living.

D.Mark didn’t give the old man anything at the beginning.小题4:How did Mark feel about the old man at last?

A.He felt the old man was kind and warm.

B.He felt pity for the old man.

C.He felt angry with the old man

D.He felt doubt if the old man was a thief.

题型:不定项选择

下列各句中划线成语使用正确的一句是     (      )      (2分)

A.李明的父母对他的关心真是无所不至,这不,昨天他妈妈又给他送衣服和牛奶来了。

B.六千多个学生整整齐齐地站在操场上,真是鳞次栉比,蔚为壮观。

C.老师家的藏书真多啊,偌大一个书房放得满满的,真可谓汗牛充栋

D.犯罪分子常用一些不名一钱的废外币冒充美元骗取一些贪财老奶奶的金首饰。

题型:不定项选择

色彩学习主要包含了哪两个方面的内容()。

A、色彩的理论知识

B、色彩的实践经验

C、色彩的应用

题型:不定项选择

社会调查研究首先要提出研究的问题,那么问题的提出不包括下列哪个原则()

A.需要性原则

B.创新性原则

C.科学性原则

D.可行性原则

E.方便性原则

题型:不定项选择

什么是线性电阻、非线性电阻?

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