Scientists will()new methods of increasing the world's food supplyA、set asideB、go
Scientists will()new methods of increasing the world's food supply
A、set aside
B、go over
C、turn up
D、come up with
Scientists will()new methods of increasing the world's food supply
A、set aside
B、go over
C、turn up
D、come up with
A.A.true
B.B.false
Very few scientists ______ completely new answers to the world's problems.
A.come up with
B.come out
C.come round
D.come up to
Very few scientists ______ with completely new answers to the world's problems.
A.come to
B.come around
C.come up
D.come in
Scientists can predict regions ______ new species are most likely to be found.
A.where
B.when
C.why
D.how
A.support
B.elevate
C.investigate
D.challenge
Why did it take the scientists so long a time to find the new planets?
A.Because they are much darker than their parent stars.
B.Because there are too many of them.
C.Because there is too much light in the universe.
D.Because they are next to a huge explosion.
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
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