单项选择题


A．operations
B．utilization
C．accomplishments
D．extreme importance
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单项选择题
A．anythingB．nothingC．somethingD．everything
A．anything
B．nothing
C．something
D．everything
单项选择题
A．results fromB．brings forwardC．results inD．comes off
A．results from
B．brings forward
C．results in
D．comes off
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