题目内容
（请给出正确答案）
Seven is equal to how many thirds of seven？
A．1/3
B．1
C．3
D．7
E．21
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（由简答题聘请的专业题库老师提供的解答）
更多“Seven is equal to how many thirds of seven？A．1/3B．1C．3D．7E．21”相关的问题
The words "Bear in mind undetectable does not equal absent" by Ho's means .
A.AIDS virus can be undetectable in the blood
B.AIDS virus is undetectable in the blood
C.No AIDS virus can be detected in the blood
D.No virus found in the blood means no AIDS
What do Ho's words "Bear in mind that undetectable does not equal absent" mean？
A．AIDS virus can exist in the blood without being detected.
B．AIDS virus is undetectable in the blood.
C．NO AIDS virus can be detected in the blood.
D．No virus found in the blood means no AIDS.
What do Ho's words "Bear in mind that undetectable does not equal absent" mean？
A．AIDS virus can exist in the blood without being detected.
B．AIDS virus is undetectable in the blood.
C．No ADS virus can be detected in the blood.
D．No virus found in the blood means no ADS.
What is the normal length of anchor cable used to anchor a vessel ().
A.An amount equal to the depth of the water
B.Two times the depth of water
C.Three to four times the depth of water
D.Five to seven times the depth of water
第二节 短文理解1
阅读下面短文，从[A](Right)、[B](Wrong)、[C](Doesn't Say)三个判断中选择一个正确选项。
The poor little girl was tired and hungry in the forest(森林). She walked through the forest, ho ping to find something to eat because she didn't want to die. Then she found a little house and thought it must be a woodman' s(伐木人的) house and she might be able to stay there. So she knocked at the door. As there was no answer, she opened t and went inside.
There she saw a room with a long table. On t there were seven knives and forks, seven plates and drinking cups, and on the plates and n the cups were food and drink. The little girl was too hungry to turn away from the food, so she took a little from each plate and each cup.
At the other end of the room, there were seven little beds. She tried to lie on some of them, and when she found a very nice one, she fell into a deep sleep, for she was very tired after a long walk through the forest.
The little girl was happy to get to the forest.
A．Right
B．Wrong
C．Doesn't say
New Attempts to Eradicate AIDS Virus
A high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.
But researchers won't know for a year or more whether it will work, scientist David Ho told journalists here Wednesday for the Fourth Conference in Viruses and Infections.
"This is a study that's in progress," says Ho, head of the Aaron Diamond AIDS Research Center, New York.
The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease, within 90 days of their infections. They've been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients, s And, in the latest development6, scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there, Ho says. "Bear in mind that？ undetectable does not equal absent," Ho says.
Ho has calculated that the drugs should be able to wipe out remaining viruses -- at least from known reservoirs throughout the body -- in two to three years. But the only way to prove eradication would be to stop the drugs and see if the virus comes back8. On Wednesday, Ho said he wouldn't ask any patient to consider that step before 2years of treatment.
And he emphasized that he is not urging widespread adoption of such early, aggressive treatment outside of trials9. No one knows the long-term risks.
But other scientists are looking at similar experiments. A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs, says researcher Douglas Richman of the University of California, San Diego. Some patients in that study also may be offered the chance to stop therapy after 18 months or more, he says.
According to the passage, the attempt to eradicate the AIDS virus
A．continues to be hopeful.
B．will be successful in a year.
C．will be successful in future.
D．will stop being hopeful.
New Attempts to Eradicate AIDS Virus
A high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.
But researchers won't know for a year or more whether it will work, scientist David Ho told journalists this Wednesday for the Fourth Conference in Viruses and Infections.
"This is a study that's in progress," says Ho, head of the Aaron Diamond AIDS Research Center, New York.
The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease, within 90 days of their infections. They've been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients. And, in the latest development, scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there, Ho says. "Bear in mind that undetectable does not equal absent," Ho says.
Ho has calculated that the drugs should be able to wipe out remaining viruses — at least from known reservoirs throughout the body — in two to three years. But the only way to prove eradication would be to stop the drugs and see if the virus comes back. On Wednesday,' Ho said he wouldn't ask any patient to consider that step before 2 years of treatment.
And he emphasized that he is not urging widespread adoption of such early, aggressive treatment outside of trials. No one knows the long-term risks.
But other scientists are looking at similar experiments. A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs, says researcher Douglas Richman of the University of California, San Diego. Some patients in that study also may be offered the chance to stop therapy after 18 months or more, he says.
According to the passage, the attempt to eradicate the AIDS virus ______.
A．continues to be hopeful
B．will be successful in a year
C．will be successful in future
D．will stop being hopeful
Between 1450 and 1433, Emperor Chu Ti's Treasure Fleet of the Dragon Throne ruled the entire south Pacific and the Indian Ocean, collecting gifts and tributes(贡品) for the Emperor throughout a territory that ranges from Korea and Japan to Eastern coast of Africa. The Admiral Cheng Ho began the first of seven voyages in 1405. The purpose of the first voyage was to hurt the former emperor who had been dethroned and escaped. The admiral's fleet, which was made up of 62 large junks and 255 smaller ships, recaptured the deposed emperor and also defeated a large pirate fleet that had been terrorizing the islands near Sumatra. Over the next 28 years, Admiral Cheng Ho increased China's trading territory to including 37 countries from the Vietnam coast to Persian Gulf, the Red Sea, and eastern Africa. Cheng He's death around 1435 signaled the end of the Treasure Fleet and disappearing of China's economic domination of the South Pacific.
It is implied but not stated that ancient navigation used to sail ______.
A．with their knowledge of the winds
B．by the sky
C．by the compass
D．by the currents of the Pacific
The House and Senate are divided into small groups which take care of special matters such as education or foreign affairs. The most important work of Congress is often done in these groups, which are called subcommittees.
According to the Constitution of the United States, a senator must be at least 30 years old and he must have been a citizen of the United States for nine years at the time of his election. To be elected to the House a person must be 25 years old and must have been a United States citizen for seven years. At the present time, members of Congress include businessmen, farmers, teachers, and especially lawyers. In general, senators are better known than representatives because they are fewer in number and serve for a longer time. Many American presidents served in Congress before they became president.
In the U.S. Congress, the House of Representatives and the Senate are ______.
A．not equal. The House is more powerful
B．almost equal in power
C．not equal. The Senate is far more powerful
D．different. The House is more important
The House and Senate are divided into small groups which take care of special matters such as education or foreign affairs. The most important work of Congress is often done in these groups, which are called subcommittees.
According to the Constitution of the United States, a senator must be at least 30 years old and he must have been a citizen of the United States for nine years at the time of his election. To be elected to the House a person must be 25 years old and must have been a United States citizen for seven years. At the present time, members of Congress include businessmen, farmers, teachers, and especially lawyers. In general, senators are better known than representatives because they are fewer in number and serve for a longer time. Many American presidents served in Congress before they became president.
In the U.S. Congress, the House of Representatives and the Senate are______.
A．not equal. The House is more powerful
B．almost equal in power
C．not equal. The Senate is far more powerful
D．different. The House is more important
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