高阶通道误码检测功能采用（）字节。
A.B1
B.B2
C.B3
D.V5
参考答案：C
从环境保护的角度看，凡是对人们的生活和工作有______的一切声音都是噪声．控制噪声可以从以下三方面着手：______、______和______．
_______ get a better score, she has been studying hard all day.
A. So as to
B. In order to
C. So that
D. In order that
