单项选择题


A．as
B．if
C．whether
D．while
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单项选择题
A．justifyB．identifyC．simplifyD．clarify
A．justify
B．identify
C．simplify
D．clarify
单项选择题
It is reported that an increasing number of people __________ building more nuclear power plants.
A．agree
B．approve
C．consent
D．favour
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