单项选择题

Scientists generally agree that the Earth's climate will warm up over the next 50 to 100 years ______it has warmed in the 20,000 years since the Ice Age.

A．as long as
B．as much as
C．as soon as
D．as well as
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单项选择题
Experts say walking is one of the best ways for a person to ______ healthy.
A．preserve
B．stay
C．maintain
D．reserve
单项选择题
______, he does get irritated with her sometimes.
A．As he likes her much
B．Much he likes her though
C．Though much he like her
D．Much as he likes her
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