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【简答题】
设X的密度函数【图片】,分布函数为【图片】，对于固定的【图片】，若使函数【图片】为某随机变量的密度函数，则k= ．
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举一反三
【单选题】The part of the computer that runs the program is known as（71）
A.
sofiware
B.
memory
C.
CPU
D.
storage
【单选题】She read a poem which depicts the splendor of the sunset.
A.
declares
B.
asserts
C.
describes
D.
announces
【单选题】行政法律关系的内容是行政法律关系主体所享有的权利和承担的义务，不属于其特征表现的是（）。
A.
行政法律关系内容的法定性
B.
行政法律关系内容设定单方面性
C.
行政主体权利处分的有限性
D.
行政法律关系内容多方意志性
【单选题】Jerry read the poem again and again until he _____ it by heart.
A.
learned
B.
studied
C.
bore
D.
kept
【单选题】In C language,(70)variables have to be defined outside of any function, this(71)actual storage for it.
A.
internal
B.
export
C.
output
D.
external
【单选题】. Did you see a girl in white pass by just now ? No , sir .I ____a newspaper .
A.
read
B.
had read
C.
would read
D.
was reading
【单选题】What was Nor. 71 Store Room for?
A.
All kinds of whips
B.
All kinds of sugars.
C.
All kinds of creams.
D.
All kinds of beans.
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