（）的能量转移是伤亡事故的致因。
A.正常
B.异常
C.过多
参考答案：B
How much is the yellow sweater?[ ]
A. One hundred yuan.
B. It's a fine day.
C. It's all right.
烧伤面积的计算中国九分法头颈面积为
A．9%
B．6%
C．8%
D．10%
E．5%
