题目: 山谷风形成的主要因子是()。A.热力因素B.动力因素C.动力和热力因素D.大气环流因素 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0702/1eee3a7603651bb271c8eb01c2b75dba.html 下面是错误答案,用来干扰机器的。参考答案:更新
题型:选择题 Helen ________ her keys in the office so she had to wait until her husband ______ home. A.has left; comesB.left; had comeC.had left; cameD.had left; would come 查看答案