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The scientists are trying to unveil the history of the universe.（翻译）
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更多“The scientists are trying to u…”相关的问题
Scientists are certain that the sea level____rise in the next 200 years.
A. is going to
B. may
C. will
D. should
A．Because scientists insist they are harmless.
B．Because the protestors aren't very big and powerful.
C．Because they are critical for understanding and curing human diseases.
D．Because there are enough regulations to protect animals from abuse.
A.It hasn"t met scientists" expectation yet.
B.It hasn"t been appreciated appropriately.
C.It is secondary to what has been discovered.
D.It is what scientists have been aiming at.
A．Y
B．N
C．NG
What do we learn about scientists in earlier times？
A．They claimed to know nothing about nature.
B．They believed in results from scientific observation.
C．They paid much attention to the problems they didn't understand.
D．They invented false theories to explain things they didn't understand.
In the author's opinion ______.
A．since people can lie, the problem about the rights of scientists can't be solved
B．animal-protecting organizations should be held responsible for acts of violence against scientists
C．animal protection organizations should be declared illegal
D．the scientists should take effective measures to protect themselves
Land is becoming desert little by little because ______.
A．plants can't grow there
B．there is not enough rain
C．people haven't done what scientists wish them to do
D．scientists know little about the deserts
Why did the scientists scent the room with only a few sprays of Windex in the experiment？
A．Because they wanted to rule out of other explanations for people's behavior.
B．Because they didn't want the subjects to notice the smell.
C．Because Windex are poisonous.
D．Because they would like to keep the room clean.
A.didn't achieve
B.wasn't able to achieve
C.wouldn't have achieved
D.shouldn't have achieved
Some places on the earth don't get very much rain. But they still don't become deserts. This is because some green plants are growing there. Small green plants and grass are very important to dry places. Plants don't let the hot sun make the earth even drier. Plants don't let the wind blow the dirt(土)away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become a desert much more easily.
Deserts ______.
A．get very little rain
B．never have any plants or animals in them
C．can all be turned into good land before long
D．both A and C
Where the Skylab will fall？
A) is kept secret
B) has been made public
C) has been predicted by scientists
D) can’t be predicted even by computers
