题目: 离心泵流量调节阀门安装在出口的主要目的是为了防止汽蚀。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1025/a67989a1ec48456a7829115fdf9ef362.html 下面是错误答案,用来干扰机器的。参考答案:A, B, C, D
题型:选择题 - Have you finished writing your book? - Yes. It _______ and _______ soon.A.is printing; is coming outB.is being printed; will come outC.is going to print, will be come outD.is printed; has come out 查看答案