单项选择题


A．discussing
B．concerning
C．studying
D．researching
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单项选择题
A．capabilityB．capacityC．probabilityD．ability
A．capability
B．capacity
C．probability
D．ability
单项选择题
A．as muchB．as much asC．so far asD．as well as
A．as much
B．as much as
C．so far as
D．as well as
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