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____________ has been discovered that the two countries are making secret contact wit

A.What

B.That

C.All

D.It

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更多“____________ has been discover…”相关的问题
第1题
A.It hasn't been bought by the librarian.B.It has been taken by a student.C.It has bee

A.It hasn't been bought by the librarian.

B.It has been taken by a student.

C.It has been lent out.

D.It has been placed on reserve.

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第2题
Bees are very small animals which fly through the air to look for flowers【B1】. When a bee【
B2】some food, it re turns to the hive and dances. The dance is the way a bee【B3】to other bees that is has found food.

Bees do two kinds of【B4】to tell other bees of their【B5】of food. First, there is a round dance.【B6】this dance, the bee moves in a【B7】inside the hive. The round dance is used【B8】the food is close by. The food must not be more than ten meters【B9】If a bee comes back and dance a round dance, other bees know they must go out and look nearby for food. The bees also【B10】the bee that has found the food. The smell tells them what kind of flower to【B11】After watching the round dance and smelling the bee【B12】has found the food, the other bees can find the other source.

A second kind of dance【B13】by the bee is a tail-wagging dance. In this dance, the bee wiggles the【B14】of its body as it moves in a【B15】line. The tail-wagging dance is used when the food is far away. The food must be【B16】ten meters away. The bees know from the speed of the tail-wagging dance just how far away the food source is. The line the bee dances on shows the direction that the bees【B17】fly into find the food. In the tail-wagging dance, the bees also smell the bee【B18】has found the food. The smell tells them what kind of flowers to look for. After watching the tail-wagging dance and smelling the bee that has found the food, the other bees know【B19】things. They know how far【B20】fly, what direction to fly in, and what kind of flowers to look for.

【B1】

A.for food

B.for eating

C.to eat

D.for eating food

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第3题
She ought to stop work; she has a headache because she ________ too long.A) has bee

She ought to stop work; she has a headache because she ________ too long.

A) has been reading

B) had read

C) is reading

D) read

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第4题
As physical exercise declines and diet expands, ________.A.other western countries has bee

As physical exercise declines and diet expands, ________.

A.other western countries has been defeated by fat

B.obesity has become an epidemic (流行病) of the rich world

C.waistbands begin to be popular in other western countries

D.western countries can no longer fight against obesity

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第5题
What is the meaning of the man?A.He would like to eat at a Chinese restaurant.B.He has bee

What is the meaning of the man?

A.He would like to eat at a Chinese restaurant.

B.He has been to a Chinese restaurant.

C.He doesn't like to eat at a Chinese restaurant.

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第6题
He didn’t go to the party, but he does wish he ________ there.A) would beB) has bee

He didn’t go to the party, but he does wish he ________ there.

A) would be

B) has been

C) would have been

D) had been

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第7题
New England is an area______.A.which lies between Australia and New ZealandB.which has bee

New England is an area______.

A.which lies between Australia and New Zealand

B.which has been newly discovered by the Englishmen

C.in the United Kingdom of the Great Britain

D.which lies in the northeastern corner of the USA

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第8题
Congressional leaders have to work out a compromise because______.A.a similar bill has bee

Congressional leaders have to work out a compromise because______.

A.a similar bill has been passed.

B.the President might oppose the plan.

C.the Senate bill was passed by 57 to 42.

D.the White House is facing opposition.

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第9题
听力原文:M: Is that it for today?W: That's it.Q: What does the woman mean?(15)A.It has bee

听力原文:M: Is that it for today?

W: That's it.

Q: What does the woman mean?

(15)

A.It has been a good day.

B.That's the place we are going to.

C.We've finished our day's work.

D.The store is closed for the day.

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第10题
A team of researchers has found that immunizing patients with bee venom instead of with th
e bees' crushed bodies can better prevent serious and sometimes fatal sting reactions in the more than one million Americans who are hypersensitive to bee stings. The crushed-body treatment has been standard for fifty years, but a report released recently said that it was ineffective. The serum made from the crushed bodies of bees produced more adverse reactions than the injections of the venom did.

The research compared results of the crushed-body treatment with results of immunotherapy that used insect venom and also with results of a placebo. After six to ten weeks of immunization, allergic reactions to stings occurred in seven of twelve patients treated with the placebo, seven of twelve treated with crushed body extract, and one of eighteen treated with the venom.

The word "fatal" in paragraph 1, sentence 1 is closest in meaning to ______.

A.harmful

B.lethal

C.painful

D.disease-causing

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第11题
Which of the following is NOT true according to the passage?A.Before 1959 the flag had bee

Which of the following is NOT true according to the passage?

A.Before 1959 the flag had been changed 25 times.

B.Each federal department has its own official flag.

C.The national flag of the U. S. had 26 stars on it after admission of Hawaii into the Union in 1959.

D.In 1912, there had been 48 states in the Union.

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