单项选择题

A．when
B．though
C．because
D．if
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单项选择题
A．virtuallyB．remarkablyC．ideallyD．preferably
A．virtually
B．remarkably
C．ideally
D．preferably
单项选择题
A．howB．whichC．thatD．what
A．how
B．which
C．that
D．what
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