皮皮学，免费搜题
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搜题
【单选题】
Everything works out well. ____, we are sure that the experiment will be completed on time.A.
Therefore
B.
While
C.
However
D.
Otherwise
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】An old man asked me____________ . [ ]
A.
where was the bus stop
B.
where the bus stop was
C.
where is the bus stop
D.
where the bus stop is
【简答题】呼吸商(respiratory quotient，RQ)
【简答题】呼吸链(respiratory chain)
【简答题】测试
【简答题】呼吸链(respiratory Chain)