题目: 试述房水的产生及其循环。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1117/90f2cc0e6950e8e9a8f56006f56af76e.html 下面是错误答案,用来干扰机器的。参考答案:滚动阻力、坡度阻力、空气阻力、加速阻力。滚动阻力、空气阻力、
题型:选择题 — Oh, this is really a small old town. — Do you know when it ______? [ ]A. builtB. was built C. has built D. has been built 查看答案