单项选择题

A．in
B．at
C．on
D．by
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单项选择题
A．HoweverB．AndC．ThereforeD．So
A．However
B．And
C．Therefore
D．So
单项选择题
A．measuresB．measuredC．is measuredD．was measured
A．measures
B．measured
C．is measured
D．was measured
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