名词解释：differential gene expression (差别基因表达)

题型：判断题

绿色植物是生态系统中可以缺少的成分。 [ ]

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题型：完形填空

Listening to an Ipod, playing loud video games and going to see the movies are harmful to your hearing. ___71____
Block(堵住)，walk and turn—that’s what hearing scientists want you to do when you face a loud noise. Block the noise from entering your ears.    72    And turn it down.
About 15% of all school-age children live with some hearing loss. And it’s a growing problem. _   73
Block It Out!
74   It starts at zero. Sounds that are too loud or sounds that last too long can harm the inner ear’s hair cells (细胞)。 Most people don’t know that listening to headphones at full volume(音量) is harmful. So turn down the volume and protect your ears.
What’s Too Loud?
75   And 60 decibels is totally safe.

A. A 2011 study by Harvard Medical School found that teenage girl have more hearing problems than teenager boys.
B. Your body might try to warn you when a sound is too loud to be safe.
C. Walk away from it.
D. Loud noise can break the inner ear, but we can avoid the noise pollution.
E. the sound unit is decibel(分贝)。

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题型：单项选择题

In June 1985, two British mountaineers Joe Simpson and Simon Yates made the first-ever climb of the 21,000-foot snow-covered Siula Grande mountain in Peru. It was an exceptionally (26) job, but nothing compared to what was to (27) . Early in the process, Simpson (28) and broke his right knee. Yates could have (29) him but managed to find a way of (30) him down the mountains on a rope in a series of difficult drops. Then Simpson fell into a crevasse and Yates eventually had no (31) but to cut the (32) , completely convinced that his friend was now (33)

In his book on the (34) , Joe Simpson wrote:

(35) I looked at the distant moraines, I know that I must at least try I would probably (36) there among those rocks. If I died, well, that wasn’t so (37) , but I wouldn’t have (38) waited for it to happen. The (39) of dying no longer affected me as it had in the crevasse at first. I now had a chance to (40) it and struggle against it.

The survival of Yates himself was (41) . That Simpson somehow found a way of (42) out of the crevasse after 12 hours and then crawled and (43) himself six miles back to camp, (44) three days and might without food or drink, would be considered as a heroic fiction. But in fact it was so (45) .

27().

A. be came

B. end

C. come

D. change

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题型：单项选择题

在大型项目中广泛使用的一种团队能力开发方法是()。

A．奖励和表彰制度

B．团队建设活动

C．人力资源的开发和培训

D．人员配合

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题型：单项选择题

脑为

A．血之府
B．中精之府
C．肾之府
D．元神之府
E．精明之府

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differential gene expression (差别基因表达)

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