题目内容
（请给出正确答案）
A．smoking reduces the oxygen carrying capacity of his blood
B．smoking and drinking make him malnourished
C．the problem of deficient oxygen supply and malnourishment act synergistically
D．it's the normal metabolism
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更多“The reason why the brain cells…”相关的问题
The foremost reason why the egg-based method is defective lies in_____.
[A] the complex process of vaccine production
[B] its potential threat to human being
[C] the low survival rate for new flu vaccines
[D] its contribution to the flu vaccine shortage
The reason why I plan to go is______if I don't .
A．because she will disappoint
B．because she will have been disappointed
C．that she will be disappointed
D．for she will be disappointed
One possible reason why spring is the best season for thinking is that ______ .
A．all nature has come back to life and becomes active
B．it is followed by summer
C．all kinds of flowers are in full bloom
D．it is warm and pleasant
A.why; because
B.that; why
C.that; that
D.why; that
A．Increased pollution of the seas.
B．Hunting.
C．Insufficient supply of food.
D．Disease.
The reason why many big hotels are being torn down is that______.
A．more and more travelers choose to stay in motels
B．people want to spend their time in a more quiet place
C．it costs too much money for people to stay in a hotel
D．cities have become short of land for building large hotels
A.for advance
B.in advance
C.on advance
D.of advancing
