【判断题】已知随机变量X服从均匀分布U(-1,1),则X的特征函数为
【简答题】—What can we do? —______. [ ] A I can swim B We can draw it
【多选题】已知随机变量 X 服从均匀分布 U(1, 3) , 则 ( ).
【单选题】Which of the following is NOT mentioned in the passage?
A.
Family is the place where we learn attitudes regarding eating.
B.
Family is the place where we learn behaviors regarding eating.
C.
When conflict occurs in a family its members may suffer from distress bad to health.
D.
Divorce is the best policy to promote health.
【单选题】Only in this way _______ our goals.
【单选题】Which of the following sentences is true according the passage?
A.
The more we read and learn, the more learned we will become.
B.
The more we read and learn, the more confused we will grow.
C.
The more we read and learn, the more honorable we will be.
D.
The more we read and learn, the more numbers we know.
【单选题】What can we infer from Mr. Porter's letter?
A.
He must have done very well in the major learning at college.
B.
He has no work experience.
C.
He graduated from college with a master degree.
D.
He is not very confident in getting the position.
【单选题】Only in this way ______ our goals.