题干

不能用化学平衡移动原理说明的事实是

A:合成氨在高压下进行是有利的

B:温度过高对合成氨不利

C:使用催化剂能使合成氨速率加快

D:及时分离从合成塔中出来的混合气,有利于合成氨

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答案(点此获取答案解析)

C

同类题3

阅读下面的短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

    I lost my sight when I was four years old by falling off a box car in a freight(货运) yard in Atlantic City and landing on my head. Now I am thirty-two. I can slightly 1 the brightness of sunshine and what color red is. It would be wonderful to see again, but 2 can do strange things to people.

    It 3 to me the other day that I might not have come to love life as I do if I hadn't been 4. I believe in life now. I am not so sure that I would have believed in it so 5, otherwise. I don't mean that I would prefer to go without my 6. I simply mean that the loss of them made me 7 the more what I had left.

    Life, I believe, asks a continuous series of 8 to reality. The more readily a person is able to make these adjustments, the more 9 his own private world becomes. The adjustment is never easy. The hardest 10 I had to learn was to believe in myself. That was 11, If I hadn't been able to do that, I would have 12 and become a chair rocker on the front porch(门廊) for the rest of my life.

    It took me years to discover and 13 this believe. It had to start with the most elementary things. Once a man gave me an indoor baseball. I thought he was 14 at me and I was hurt. "I can't use this," I said. "15 it with you," he urged me, "and roll it around." The words stuck in my head. "Roll it around!" By rolling the ball I could hear 16 it went. This gave me an idea how to achieve a goal I had thought 17: playing baseball. At Philadelphia's Overbrook School for the Blind I invented a successful variation of 18. We called it ground ball.

    All my life I have set ahead of me a series of goals and then tried to reach them, one at a time. I had to learn my 19. It was no good to try for something I knew at the start was wildly out of reach because that only invited the bitterness of 20. I would fail sometimes anyway but on average I made progress.

同类题5

阅读理解

    It has been around for centuries, but up until very recently, traditional Chinese medicine (TCM) wasn't fully accepted abroad. The 2001 film Treatment(《刮痧》)tells the story of a Chinese man in the US who's charged with guasha, a form of TCM treatment, to cure his grandson's disease.

    During the last 10 years or so, however, TCM has been getting increasingly popular all over the world. A report says this style of health care, which includes different forms like herbal medicine and exercise, has spread to 183 countries and areas.

    "We have set up 10 TCM centers outside China, and all of them are popular among locals," said Wang Guoqiang at a news meeting on Dec 6. "Governments of 86 countries and areas have signed agreements with the Chinese government on TCM corporation(合作)."

    One of the reasons behind the growing popularity of TCM is the increase of scientific research into it. And after Tu Youyou-the Chinese scientist who discovered the anti-malaria(抗疟疾)drug qinghaosu(青蒿素)-won the Nobel Prize, TCM became even more famous all over the world.

    However, all these achievements in TCM don't mean that it's problem-free. Over the years,TCM has faced challenges in being able to prove that it has certain effects.

    Some researchers have suggested TCM should be more exact and work together with western medicine.

    "Bringing together with western medicine and TCM, rather than being in competition, is where the potential(潜力)for great effects is," said Bernhard Schwartlander,the China representative(代表)of the World Health Organization.