单项选择题 固废较合理的处置方式不包括 ( ) A. 焚烧发电 B. 填埋 C. 深井灌注 D. 海洋处置
单项选择题 Directions：Please choose the best answer from the following 4 choices, and fill in the blanks with the corresponding letter. We were early for our appointment, so we _____ at a bookstore. A、race against time B、time has come C、time out D、kill time
单项选择题 人首先必须活着，然后才能做别的事情。