题目: 井下泵房内工作水管的能力应在()排除24小时涌水量A.10小时B.15小时C.20小时D.24小时 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1021/ef40e5d58832040aace859a5c0b38af7.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:选择题 English has been very popular because it is the _______ language in many western countries.A.officialB.fluentC.gradualD.frequent 查看答案