When the girl began to sneeze continuously，_____
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America succeeded in shaping world events over the past 40 years probably because
How much does the shop assistant offer to reduce at first？
What is the relationship of the two people？
在一级堤防上建一个小型穿堤涵洞，穿堤建筑物的级别是（）A．1级B．2级C．4级D．5级
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