以2-溴丙烷为原料制取1，2-丙二醇，需要经过的反应是 A．加

以2-溴丙烷为原料制取1，2-丙二醇，需要经过的反应是

A．加成—消去一取代 B．取代一消去—加成

C．消去—取代一加成 D．消去—加成—取代

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以2-溴丙烷为原料制取1，2-丙二醇，需要经过的反应是 A．加

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