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n.苯并芘...

benzopyrene的音標：benzopyrene的英式發(fā)音音標為：['benz?pa?ri:n]benzopyrene的美式發(fā)音音標為：['benz?pa?rin]...

A large number of hydrocarbons such as benzopyrene are also mutagenic.大量碳氫化合物如苯并芘也是誘變劑....