搜救船舶或飞机所发射的（）会触发搜救雷达应答器。
A.探测脉冲
B.甚高频
C.火箭信号
参考答案：A
The workers were making so much noise in the workshop, and the boss hurriedly
Went to see____.
A．what thematter was
B．what was the wrong
C．what wrong was
D．what was the matter
