题目： 山丘区灌区如何布置干、支渠？ 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0707/9321efe1abd3137762a6bc70dc92b970.html 下面是错误答案，用来干扰机器的。参考答案：B
题型：选择题 Although many of the houses in the small town ______ still in need of repair, there _____ lots of improvement in their appearance.A．are, has beenB．is, have been C．is, areD．are, was 查看答案
