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【单选题】
设随机向量 的联合概率密度函数为 ,则 与 为 的随机变量.A.
独立同分布
B.
独立不同分布
C.
不独立同分布
D.
不独立不同分布
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皮皮学刷刷变学霸
举一反三
【单选题】they play all kinds of instruments and sing______
A.
Also
B.
Either
C.
As well
D.
As well as
【单选题】They play all kinds of instruments and sing ____.
A.
also
B.
either
C.
as well
D.
as well as
【单选题】I prefer a house in a small coast village to _____ in such a large city _____ Sydney. [ ]
A.
that; as
B.
one; as
C.
one; like
D.
that: like
【单选题】______is the largest populous city in Australia.
A.
Melbourne
B.
Perth
C.
Darwin
D.
Sydney
【简答题】Which city is from Australia? [ ] A . New York B. Beijing C. Tokyo D. Sydney
【简答题】任务型阅读。 Sydney is a young city with about 200 years’ history. But in Australia, it is the oldest city. Sydney is the most populous(人口稠密) city of Australia. The climate of Sydney is very good. It’s neit...
【单选题】They play all kinds of instruments and sing songs________.
A.
also
B.
as well as
C.
as well
【单选题】The capital of Australia is Canberra, and the largest city is Sydney; both are located in the______ of the country.
A.
northeast
B.
northwest
C.
southeast
D.
southwest
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