单项选择题

According to the passage, what is one major component of Jupiter

A．Hydrogen cyanide.
B．Methyl cyanide.
C．Hydrogen.
D．Ammonia.
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单项选择题
In what respect was Kohoutek a disappointment
A．It could be seen only through special equipment.
B．It did not approach the Earth.
C．It did not provide valuable scientific information.
D．It was moving too rapidly for scientists to photograph.
单项选择题
An American senator criticized Time Warner for
A．its raising of the corporate stock price.
B．its self-examination of the soul.
C．its neglect of social responsibility.
D．its emphasis on creative freedom.
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