井口发送自整角机是传输（）的重要装置。
A、信号
B、深度
C、电缆
D、仪器
参考答案：B
后溪穴配属五行属()
A．金
B．木
C．火
D．土
E．水
Alice is a hard-working student. But _______, she didn't pass the Chinese exam. [ ]
A. in fact
B. to our surprise
C. by the way
D. as a result
