人体触电一般有单相触电.两相触电和（）三种情况。
参考答案：跨步电压触电
Mary escaped __________ for her coming late for school this morning.
A．from punishment
B．punishing
C．being punished
D．from punishing
HS采用详列商品加工方式的注释，使归类有了参照物，以便用类比的方法进行商品归类。( )
