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B.is made up
C.consists of
D.makes up of
答案
更多“The atmosphere ______ certain gases mixed together in definite proportions.”相关的问题
第1题
The main topic of the passage is ______.
A．composition of the atmosphere
B．pressure from the atmosphere
C．air pollution in the atmosphere
D．the relationship between the atmosphere and men
第2题
The (closer) one (comes) to earth, the (more denser) (the) atmosphere becomes.
A．closer
B．comes
C．more denser
D．the
第3题
A.when
B.what
C.that
D.how
第4题
A、off
B、of
C、out
D、forth
第5题
The best title for this passage would be ______.
A．The Atmosphere and Our Environment
B．Research on Radiation
C．Effects of Space Radiation
D．Importance of Protection Against Radiation
第6题
A.considering of
B.consists of
C.composes of
D.composed of
第7题
A．so B．very C．even D．as
第8题
A.disputed
B.discarded
C.dismissed
D.distorted
第9题
______the atmosphere around our Earth, we would not be able to live.
A．Had it not been for
B．Would it not be for
C．If it has not been for
D．If it were not for
第10题
In this passage the phrase "one atmosphere"(Line 8 )means" ______".
A．the mixture of gases that surrounds any heavenly body
B．one kilogram per square centimeter
C．the feeling among a group or produced by the surroundings
D．producing feelings of mysterious beauty or strangeness
第11题
The largest part of the light energy directed towards the earth is ______.
A．stored up by the plants
B．absorbed by the earth' s atmosphere
C．stored up by the animals in the form. of body fat
D．used for electric power
