A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
搜题
第1题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第2题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第3题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第4题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第5题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第6题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第7题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第8题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第9题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第10题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第11题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第12题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第13题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第14题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第15题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第16题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第17题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第18题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第19题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第20题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第21题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第22题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第23题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第24题
A. 间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 一次长声,鸣60s
第37题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
第38题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
第39题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
第40题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
第41题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
第42题
A. 预告信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s
B. 准备信号是间断鸣一长、一短三次,即鸣20s、鸣10s、停、鸣20s、鸣10s、停、鸣20s、鸣10s
C. 起爆信号是连续三短声,即鸣10s、停、鸣10s、停、鸣10s
D. 解除信号是一次长声,鸣60s
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