单项选择题

The search for a cheap alternative fuel has led American scientists to study the potential of______.

A．sunlight
B．pure hydrogen gas
C．pond water
D．small stream
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单项选择题
What can be said about Indian women
A．They played the same games as men.
B．They played games as much as men.
C．They played games with men.
D．They did not play games.
单项选择题
D
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