防水砂浆由水泥、砂、（）和水组成
A.防水剂
B.速凝剂
C.早强剂
D.引气剂
参考答案：A
This magazine is very _____ with young people, who like its content and style.
[ ]
A. familiar
B. popular
C. similar
D. particular
从尽可能地减少城市垃圾容积的角度考虑，垃圾处理与处置方法的选择顺序是( )。
A．堆肥、焚烧、热解、填埋
B．焚烧、热解、堆肥、填埋
C．热解、焚烧、堆肥、填埋
D．焚烧、堆肥、热解、填埋
