設A,B,C為三個隨機事件 ,且P(A)=P(B)=P(C)=1/4,P(AB)=0,P(AC)=P(BC)=1/12,則A,B,C中恰有一個事件發生的概率為()
A、3/4D
黨的過渡時期總路線所指的過渡時期是 _________。
________ (fail) several times, they need some encouragement.
在新民主主義社會的五種經濟成分中， 私人資本主義經濟向社會主義國營經濟過渡的形式是 ___________。
Since William had been seriously ill for several months, his parents were worried about________ to return to school full-time.
This test ________ a number of multiple choice questions.
