瓦斯爆炸的条件中,瓦斯浓度为()。A、5%一16% B、0.5%一1.5% C、80 发布时间:2017-07-19 17:34 │ 来源:www.tikuol.com 题型:单项选择题 问题: 瓦斯爆炸的条件中,瓦斯浓度为()。A、5%一16%B、0.5%一1.5%C、80%一100%D、16%一20%
题型:单项选择题 Tom _____ his father, because they both are cheerful and easygoing. [ ]A. looks like B. takes after C. doesn't take after D. isn't like 查看答案