Hardly a month goes by without _____of another survey revealing new depths of scientific illiteracy among US citizens.A words B word C a word D the word 该选哪个答案，这句话应该是什么意思？如能给予满意回答，将感激之至！

热心网友

美国公民科盲日益严重，这种调查报告几乎月月都有。这是个双重否定的名子，答案应该是B