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Scientific research indicates that two-thirds of the earth's surface ______ with water.A.c
Scientific research indicates that two-thirds of the earth's surface ______ with water.
A.covered
B.are covered
C.covers
D.is covered
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Scientific research indicates that two-thirds of the earth's surface ______ with water.
A.covered
B.are covered
C.covers
D.is covered
This text indicates that the basic component of scientific research is ______.
A.observation
B.hypothesis
C.reasoning
D.interpretation
__________ in his scientific research, he had no time left for recreational activities.
A.Having absorbed
B.Absorbed
C.Absorbing
D.Be absorbed
A.stimulate
B.renovate
C.arouse
D.advocate
Michelle is said ______ some progress in her scientific research in the past year.
A.to have made
B.to make
C.making
D.having made
We can learn from the passage that finagle factor______.
A.is omnipresent in scientific research
B.is unavoidable in scientific research
C.may be employed either consciously or unconsciously
D.is desirable only in some scientific researches
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