【C8】A．signifiedB．simulatedC．impliedD．signaled

What is NOT a distress signal （).

Which is NOT a distress signal （).A.A continuous sounding with any fog signal apparatusB.A

____，the bus started at once.A、The signal was givenB、The signal givingC、The signal give

【C6】A．publishedB．simulatedC．illuminatedD．circulated

【C2】A．reasonB．noticeC．warningD．signal

【25】A．formulasB．marksC．symbolsD．signals