问答题

By making vehicles lighter in weight, aluminum ____________________ (大减少了开动它们所需的燃料).

【参考答案】

has greatly reduced the amount of fuel needed to move them.[......

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单项选择题

Although he does not directly say it, the Calcutta businessman would probably agree that ______.

A．it is a good idea to place marriage advertisements in the newspaper
B．it is a bad idea to place marriage advertisements in the newspaper
C．it is embarrassing if anyone answers such advertisements
D．it is embarrassing if no one answers such advertisements

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