【判断题】如果【图片】【图片】,则【图片】为【图片】的【图片】阶极点。
【单选题】Please speak in a low . The baby is sleeping.
【判断题】设【图片】均为【图片】阶方阵,如果【图片】 则【图片】
【单选题】Please speak English . [ ]
【单选题】Would you please speak English more ? I can’t follow you.
【单选题】—Would you please speak slowly? I can hardly you. —Sorry, I will speak more slowly from now on. [ ]