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Scientists can figure out where glaciers have been in the past through ____________.
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更多“Scientists can figure out wher…”相关的问题
A．They both attract scientists' attention.
B．They can both be quite challenging.
C．They are both thought-provoking.
D．They may lead to surprising findings.
Scientists and environmentalists think that global warming can be ______.
A．continued
B．improved
C．controlled
D．reduced
Scientists aim to develop technology that can recognize psychological states.
A．Y
B．N
C．NG
Scientists have found that listening to "sad" music can make one feel warmer.
A．Y
B．N
C．NG
What can scientists do now？ 查看材料
A.Prescreen a baby"s sex.
B.Screen babies for desirable attributes.
C.Insert genes that parents want.
D.Craft genes in a lab.
It can be inferred from the text that______.
A．discoveries of new planets set scientists thinking
B．extrasolar planets exist in the universe
C．solar system should be re-examined by mankind
D．new discovery depends on new theory
A．Because scientists like mosquitoes,
B．Because mosquitoes adapt quickly and can change their body chemistry.
C．Because the medicine against mosquitoes is of bad quality.
D．Because there are too many mosquitoes.
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
Many scientists hold that global warming can be controlled by.
A．reducing the polar bear population.
B．paying more attention to the earth's rising temperatures
C．reducing carbon dioxide emissions
D．refreezing the polar ice caps
A．Because scientists like mosquitoes.
B．Because mosquitoes adapt quickly and can change their body chemistry.
C．Because the medicine against mosquitoes is of bad quality.
D．Because there are too many mosquitoes.
Scientists aim to develop technology that can recognise psychological states.
A．Y
B．N
C．NG
