It can be inferred from the passage that a vehicle specifically designed to use methanol for fuel would______.
A. be somewhat lighter in total body weight than a conventional vehicle fueled with gasoline
B. have a larger and more powerful engine than a conventional vehicle fueled with gasoline
C. average more miles per gallon than a "gasoline alone" vehicle fueled with methanol
D. have a larger and heavier fuel tank than a "gasoline alone" vehicle fueled with methanol
查看答案
The author wrote the passage in order to
A. call for cooperation of the whole world.
B. inform. the readers of the fact that we are facing energy crisis.
C. recommend a new life style.
D. call for devotion to the nature and our future generation.
Policies in the social sciences target to
A. lay the foundation of finding new truth.
B. lay the foundation of fining new principles.
C. solve some practical problems existing in human lives.
D. analyze problems occurring along the development of societies.
A．in additionB．includingC．excludingD．except
A. in addition
B. including
C. excluding
D. except
The phrase "On the downside"(Paragraph 4) denotes
A. in an advantageous aspect.
B. in a downward direction.
C. in a disadvantageous aspect.
D. on a downward path.
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