单项选择题

______ with steam engines, turbines have much higher efficiency.

A．Compared
B．While comparing
C．Compare
D．Comparing
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单项选择题
Much ______ I love him, I can't forgive his action.
A．that
B．like
C．as
D．of
单项选择题
Roger and his wife was so lucky ______; he almost did not get out of the room when the roof col- lapsed.
A．to escape
B．to have escaped
C．to be escaped
D．to be escaping
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