“过淡区”是指(),属安全区。A、氧气太少 B、含碳氢气浓度低于爆炸下限 C、含混合 发布时间:2019-07-27 14:20 │ 来源:www.tikuol.com 题型:单项选择题 问题: “过淡区”是指(),属安全区。A、氧气太少B、含碳氢气浓度低于爆炸下限C、含混合气体过淡
题型:单项选择题 The little boy was the only one who _____ the earthquake in his village, and the government sent him to a city school after that. [ ]A. experiencedB. escaped C. survivedD. suffered 查看答案