A:电工穿绝缘衣比穿金属衣安全
B:制作汽油桶的材料用金属比用塑料好
C:小鸟停在单根高压输电线上会被电死
D:打雷时,呆在汽车里比呆在木屋里要危险
—What does your Chinese teacher look like?
—She of medium height.And she short hair.