题目: 为什么离心泵启动时要关闭出口阀门? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0807/3bdf2cf1c559dd7c1f25454c669ad32c.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 My neighbor was _______ before her driving test. [ ]A. very exited B. sad C. relaxed D. very nervous 查看答案