扑救火灾的方法有哪几种？
参考答案：
1.隔离法：将可燃物与火隔离；
2.窒息法：将可燃物与空气隔绝；
3.冷却法：降低可燃物的温度。
—I hear Huang Gang made an English speak at the graduation ceremony yesterday.
--_______, and _______.
A．So did he, so I did
B．So he did, so did I
C．So was he , so was I
D．So did he , so did I
音频卡是按（）进行分类的。
A、采样频率
B、采用量化数
C、压缩方式
D、声道数
