下列可以使用泡沫灭火的是（）.
A.轻金属着火
B.油类着火
C.可燃气体着火
参考答案：B
Nine in ten parents said there were significant differences in their approach to educating their
children compared with ________ of their parents. [ ]
A. those
B. one
C. both
D. that
人体温度下降1℃，基础代谢率下降6.7%，耗氧量降低约5%。
ents said there were significant differences in their approach to educating their