泊松分布是连续型随机变量的分布。
参考答案:错
The reform project _______ by Mr. White ________ at the meeting now.
A.put forward; is discussed
B.has been put forward; is being discussed
C.is put forward; is discussed
D.put forward; is being discussing
自动喷水灭火系统管网强度试验和严密性实验采用()作为介质进行试验。
A.水
B.空气
C.氮气
D.酒精