力学中规定,功等于______.写成公式就是W=______.在国际单位制中,功

题型:填空题

问题:

力学中规定,功等于______.写成公式就是W=______.在国际单位制中,功的单位是______,简称______,符号是______.

考点:功的概念
题型:填空题

An eight-year-old child heard her parents talking about her little brother. All she knew was that he was very sick and they had no money. Only very expensive operation could save him now and there was no one to lend them the money. When she heard her daddy say to her tearful mother, “Only a miracle(奇迹)can save him now,” the little girl went to her bedroom and pulled her money from its hiding place and counted it carefully.

She hurried to a drugstore(药店) with the money in her hand.

“And what do you want?” asked the salesman. “It’s for my little brother,” the girl answered. “He’s really, really sick and I want to buy a miracle.” “Pardon?” said the salesman.

“My brother Andrew has something bad growing in-side his head and my daddy says only a miracle can save him. So how much does a miracle cost?” “We don’t sell a miracle here, child. I’m sorry,” the salesman said with a smile.

“Listen, if it isn’t enough, I can try and get some more. Just tell me how much it costs.”

A well-dressed man heard it and asked, “What kind of a miracle does your brother need?”

“I don’t know,” she answered with her eyes full of tears. “He’s really sick and mum says he needs an operation. But my daddy can’t pay for it, so I have brought all my money.

“How much do you have?” asked the man. “$1.11, but I can try and get some more,” she answered.

“Well, what luck,” smiled the man. “$1.11, the price of a miracle for little brothers”

He took up the girl’s hand and said, “Take me to where you live. I want to see your brother and meet your parents. Let’s see if I have the kind of miracle you need.”

That well-dressed man was Dr Carlton Armstrong, a famous doctor. The operation was successful and it wasn’t long before Andrew was home again.

How much did the miracle cost?

小题1:What was the trouble in the little girl’s family?

A. Her brother was seriously ill. 

B. They had no money. 

C. Both A and B.

小题2:In the eye of the girl, a miracle might be _____.

A.something interesting 

B. something beautiful 

C. some wonderful medicine

小题3:The little girl said again and again “…I can try get some more.”That hows___.

A. she had still kept somemoney 

B. she hoped not to be refused

C. There was no need to worry about money

小题4:What made the miracle happen?

A.The girl’s love for her brother. 

B. The girl’s money

C.The medicine from the drugstore.

小题5:From the passage we can infer(推断) that _____.

A. The doctor didn’t ask for any pay.

B. The little girl is lovely but not so clever.

C. Andrew was in fact not so sick as they had thought.

题型:填空题

关于慢性萎缩性胃炎的镜下改变的叙述,下列错误的是()

A.病变区腺上皮萎缩,腺体缩小

B.在幽门窦病变区,幽门腺萎缩甚至消失

C.病变区有淋巴细胞、浆细胞浸润

D.病变仅限于黏膜浅层

E.在胃底或胃体部病变,壁细胞减少或消失

题型:填空题

The reason ____ his coming to China is _____ he wants to study in China.   [ ]

A. why; that    

B. why; because    

C. for; that    

D. for; because

题型:填空题

男,70岁,患慢性支气管炎,长期咳嗽20余年,近1个月因感冒、咳嗽加重,昨日起感右下胸部疼痛,深呼吸时加重,X线片示右胸第7~9肋骨骨折,未见明显移位。最可能的成因是()。

A.直接暴力

B.间接暴力

C.肌肉牵拉力

D.积累性劳损

E.骨骼疾病

题型:填空题

不属于氯丙嗪作用的是

A.调节体温

B.阻断M受体

C.镇静、安定

D.激动α受体

E.减少生长激素分泌

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