空气净化设备中，常用的吸收剂有（）。
A.活性炭
B.碱性吸收剂
C.酸性吸收剂
D.水
参考答案：B, C, D
汇编语音程序设计中的三种构成方法分别是顺序程序设计、______和循环程序设计。
Alice in Wonderful is a fantastic movie. It's about
[ ]
A. how did Alice end the Red Queen's reign of terror(恐怖统治)
B. what did Alice end the Red Queen's reign of terror
C. how Alice ended the Red Queen's reign of terror
D. what Alice ended the Red Queen's reign of terror
