You will hear one word read from each group. Circle the correct one after listening and then read all the words correctly.
查看答案
设随机变量X服从二项分布B(n,p),则随机变量Y=n-X服从的分布为______.
I ______ the cream from the milk. (skim, skin)
My mother never let me paint my ______. (nails, mail)
The next number is neither nine nor nineteen.