下列不属于井下环境保护方面的是（）。
A.矿井通风工作
B.个人劳动卫生保护
C.定时、定点洒水
D.井下清洁工作
参考答案：B
Many people who had seen the film were afraid to go to the forest when they remembered
the scenes____ people were eaten by the tiger. [ ]
A. in which
B. by which
C. which
D. that
语言发展的关键期是1～3岁。()
