【判断题】梯田修筑应与沟道治理、坡面防护等工程相结合,提高防御暴雨冲刷能力。梯田田坎宜采用土坎、石坎、土石混合坎或植物坎等
【单选题】What is not mentioned when talking about places where people were trapped in?
【单选题】负担全网的数据传输和向网络用户提供资源及网络服务的是( ) 。
【单选题】Where did you put the car keys? —Oh, I ______ I put them on the chair because the phone rang as I ______ in.