读中亚局部图,回答下列各题。 小题1:图中箭头代表的是某种生态问题的扩散,该

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问题:

读中亚局部图,回答下列各题。

小题1:图中箭头代表的是某种生态问题的扩散,该生态问题是

A.大气污染

B.水土流失

C.土地荒漠化

D.泥石流小题2:该区域农业生产中的限制因素是

A.光照

B.水源

C.热量

D.地形

考点:区域农业的发展
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用分子的相关知识解释下列生活中的现象,不正确的是[ ]

A.墙内开花墙外香--分子在不断运动

B.热胀冷缩--分子的大小随温度的升降而改变

C.50mL酒精与50mL水混合后,体积小于100mL--分子间有空隙

D.湿衣服在充足的阳光下容易晾干--分子的运动速率随温度升高而加快

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下面为早期血灌瞳神的治疗手段,除了:

A.患眼热敷

B.患眼包扎

C.卧床休息

D.眼止血之品

E.可结合手术治疗

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The young boy saw me, or rather, he saw the car and quickly ran up to me, eager to sell his bunches (串) of bananas and bags of peanuts. Though he appeared to be about twelve, he seemed to have already known the bitterness of life. "Banana 300 naira. Peanuts 200 naira"He said in a low voice. I bargained him down to 200 total for the fruit and nuts. When he agreed, I handed him a 500 naira bill He didn't have change, so I told him not to worry. He said thanks and smiled a row of perfect teeth.

When, two weeks later, I saw the boy again, I was more aware of my position in a society where it's not that uncommon to see a little boy who should be in school standing on the comer selling fruit in the burning sun. My parents had raised me to be aware of the advantage we had been afforded and the responsibility it brought to us.

I pulled over and rolled down my window. He had a bunch of bananas and a bag of peanuts ready. I waved them away. “What's up?” I asked him. “I...I don't have money to buy books for school.” I reached into my pocket and handed him two fresh 500 naira bills."Will this help?” I asked. He looked around nervously before taking the money. One thousand naira was a lot of money to someone whose family probably made about 5,000 naira or less each year. "Thank you, sir," he said. “Thank you very much.”

When driving home, I wondered if my little friend actually used the money for school-books. What if he's a cheat (骗子)? And then I wondered why I did it .Did I do it to make myself feel better? Was I using him? Later, I realized that I didn't know his name or the least bit about him, nor did I think to ask.

Over the next six months, I was busy working in a news agency in northern Nigeria. Sometime after I returned, I went out for a drive When I was about to pull over, the boy suddenly appeared by my window with a big smile ready on his face.

"Oh, gosh! Long time."

"Are you in school now?”  I asked.

He nodded.

"That's good," I said. A silence fell as we looked at each other, and then I realized what he wanted. "Here," I held out a 500 naira bill. “Take this.” He shook his head and stepped back as if hurt. "What's wrong?” I asked. "It's a gift."

He shook his head again and brought his hand from behind his back. His face shone with sweat (汗水). He dropped a bunch of bananas and a bag of peanuts in the front seat before he said, "I've been waiting to give these to you."

64. What was the author's first impression of the boy?

A. He seemed to be poor and greedy.                   B. He seemed to have suffered a lot

C. He seemed younger than his age.                     D. He seemed good at bargaining

65. The second time the author met the boy, the boy________.

A. told him his purpose of selling fruit and nuts             B. wanted to express his thanks

C. asked him for money for his schoolbooks           D. tried to take advantage of him

66. Why did the author give his money to the boy?

A. Because he had enough money to do that.

B. Because he had learnt to help others since childhood.

C. Because he held a higher position in the society.

D. Because he had been asked by the news agency to do so.

67. Which of the following best describes the boy?

A. Brave and polite.    B. Kind and smart                C. Honest and thankful.       D. Shy and nervous.

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如果并发 * * 肌断裂,出现的可能性最大的体征是( )

A.心包摩擦音
B.心尖区出现舒张期奔马律
C.室性心律失常
D.心尖区出现收缩中晚期喀喇音和响亮的收缩期杂音
E.心尖区ST降低,出现第四心音

题型:选择题

机件向基本投影面投射得到的视图称为()。

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