用万用表直流电压挡测得晶体管三个管脚的对地电压分别是V1=2V,V2=6V,V3=2.7V,由此可判断该晶体管的管型和三个管脚依次为____。()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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