单项选择题

Paragraph 2 mentions all of the following as necessary elements in the creation of steam caves EXCEPT ______.

A．a glacier
B．a crater
C．heat
D．snow
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单项选择题
Why does the author say people were even more sexist then than they are now
A．Because they are so covetous that they want to know all there was to know.
B．Because it is the Renaissance "Man", not Renaissance "Woman" or" Human".
C．Because no woman was formally educated at that time.
D．Because all Renaissance men were men.
单项选择题
According to the passage, heat from Mount Rainier's summit craters rises from ______.
A．crystalline ice
B．rims
C．chambers
D．fumaroles
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