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（49）__________ 查看材料A.So far， we have not known exac

（49）__________ 查看材料

A.So far， we have not known exactty yet whether mouth-to-mouth breathing is really useless in CPR.

B.Only ten percent of the victims treated with traditional CPR survived with good brain ability.

C.CPR keeps blood and oxygen flowing to the heart and brain.

D.His studies show that many people do not want to perform. mouth-to-mouth breathing on a stranger for fear of getting a disease.

E.It said people should increase the number of chest presses from fifteen to thirty for every two breaths given.

F.No mouth-to-mouth rescue breaths were given to them.

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第1题

请回答（49）__________ 查看材料

请回答（49）__________

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第2题

请回答（49）题__________ 查看材料

请回答（49）题__________

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第3题

根据上面选项，回答（49）题查看材料

根据上面选项，回答（49）题

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第4题

回答（49）题查看材料A.But their use of Broca"s area was

回答（49）题查看材料

A.But their use of Broca"s area was different.

B.One group consisted of those who had learned a second language as children.

C.How does Hirsch explain this difference？

D.We use special parts of the brain for language learning.

E.And that is very different from learning a languase in a high school or college class.

F.Their work led to an important discovery.

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第5题

回答（49）题查看材料A.Another distinction between scienc

回答（49）题查看材料

A.Another distinction between science and technology has to do with the progress in each.

B.Unlike science， progress in technology must be measured in terms of the human factor.

C.What scientists discover may shock or anger people——as did Darwin"s theory of evolution.

D.Science and technology are different.

E.We are all familiar with the improper use of technology.

F.Science is a method of answering theoretical questions ; technology is a method of solving practical problems.

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第6题

请在第__（49）__处填上正确答案。查看材料A.Natural sponges

请在第__（49）__处填上正确答案。查看材料

A.Natural sponges become cleaning aids.

B.We pollute the ocean when we use it as a garbage dump.

C.The area of the sea is becoming smaller anal smaller.

D.Along with salt， other minerals are left after evaporation.

E.We even use their bones for fertilizer.

F.Some of its contents may cause illness.

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第7题

回答（49）题查看材料A.The local police were searching

回答（49）题查看材料

A.The local police were searching for him.

B.Smith is a 26-year-old single mother with a daughter.

C.Smith tried very hard to kill Nichols.

D.She even cooked breakfast for the man before he allowed her to leave.

E.And the two of them discussed this topic.

F.Then she called the police.

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第8题

回答（49）题查看材料A.Nobody is poor in the US.B.The top

回答（49）题查看材料

A.Nobody is poor in the US.

B.The top 0.01 percent of households has seen its tax bite fall by a full 25 percentage points since 1980.

C.For upper class families they have risen 41 percent.

D.Now it is 9.8 times.

E.As it does so， the possibility to cross that gap gets smaller and smaller.

F.All one has to do is to work hard and climb the ladder towards the top.

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第9题

回答（49）题查看材料A.But it also looks at the celebrity

回答（49）题查看材料

A.But it also looks at the celebrity"s presence on the Internet and in the media.

B.In 1991， she did a lot of work for the National Child Protection Act.

C.She was not a very successful woman.

D.She began broadcasting while still at high school.

E.It placed Winfrey at the top of its annual ranking of the 100 people last week.

F.The couple had been tight-lipped about their break-up.

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