A.報(bào)警信號(hào)為一長(zhǎng)鳴笛,關(guān)閉防噴器信號(hào)為兩短鳴笛,開井信號(hào)為三短鳴笛
B.報(bào)警信號(hào)為一長(zhǎng)短笛,關(guān)閉防噴器信號(hào)為兩短鳴笛,開井信號(hào)為三短鳴笛
C.報(bào)警信號(hào)為一長(zhǎng)短笛,關(guān)閉防噴器信號(hào)為三短鳴笛,開井信號(hào)為兩短鳴笛
D.報(bào)警信號(hào)為兩短鳴笛,關(guān)閉防噴器信號(hào)為一長(zhǎng)短笛,開井信號(hào)為三短鳴笛