题目： 调速器配压阀针杆上下串动，调速器需切手动运行。 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0824/1977d445c71c17cf2ec009aa474448ec.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 — Something must be done to stop the farmers cutting down the forests. — I agree with you. If we ____, a lot more good land will be gone with them.A. won'tB. aren'tC. don't D. mustn't 查看答案
