燃具回火故障是因()。A.压力大 B.压力太小 C.喷嘴被堵 D.风门过大 发布时间:2017-05-19 05:02 │ 来源:www.tikuol.com 题型:单项选择题 问题: 燃具回火故障是因()。A.压力大B.压力太小C.喷嘴被堵D.风门过大
题型:单项选择题 There ______ an important meeting in a minute in our school.A. will have B. wasC. is going to have D. will be 查看答案