速录机莫名其妙的丢字,有可能出现的是()问题。
A、速录键盘
B、电脑显示器
C、速录系统
D、词库
参考答案:A
—________ is it from your school to the bus station?
—About 50 meters. [ ]
A. How long
B. How far
C. How soon
D. How much
过热器管破裂的处理及其危害?