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【单选题】
已知随机变量Z服从区间[0,2π]上的均匀分布，且X=sinZ,Y=sin(Z+k),k为常数，则X与Y的相关系数为()
A.
cosk
B.
sink
C.
1-cosk
D.
1-sink
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参考答案：
举一反三
【单选题】Why did the author feel miffed in his interview with Anne?
A.
Anne’s refusal was expected and hence didn’t irritate the author.
B.
He didn’t expect Anne to accept the job with eagerness.
C.
Many girls but Anne would be eager to get the job, because the author was a famous American movie star.
D.
Anne expected high pay for the job.
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【单选题】执行下面的语句后, z 的值为多少 ( ) 。 int x = 1 ; int y = x++; boolean z = x>1 & y++>2;
A.
true
B.
false
C.
0
D.
1
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【单选题】执行下面的语句后,x、y、z的值为()。 int x=7,y=9,z; z=(x>y)?x+y:x/y;
A.
7、9、16
B.
7、9、0
C.
16、9、16
D.
16、16、16
查看完整题目与答案
【简答题】A．People might put sugar in the salt container to fool others. B．People might change the time of other's alarm clock. C．People might tell a lie to give others a shock. D．Media might make false news to...
查看完整题目与答案
【单选题】They had to move away _________ there might be another earthquake.
A.
no wonder that
B.
no doubt that
C.
in case that
D.
for fear that
查看完整题目与答案
【单选题】不属于维护市场公平竞争的手段是( )。
A.
反补贴税；
B.
反倾销税；
C.
进口限额；
D.
绑架对方企业高管人员。
查看完整题目与答案
【单选题】有定义: int x=4,y,则执行下面两个语句: y=4*x++; x++; 后,x的值为( )
A.
4
B.
5
C.
6
D.
16
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【单选题】下面语句执行后y的值为() int x = 0, y = 0; while (x < 10) y +=(x +=2)
A.
10
B.
20
C.
30
D.
55
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【单选题】下面语句执行后y的值为() int x = 1, y = 1; do y <<= (++x); while (x < 4);
A.
16
B.
C.
138
D.
512
查看完整题目与答案
【单选题】Why did George laugh at Anne's question?
A.
Because the students always wore evening dress.
B.
Because it wasn't evening.
C.
Because all the students wore evening dress in June.
D.
Because he knew she had never seen formal dress worn in the morning before.
查看完整题目与答案
相关题目：
【单选题】Why did the author feel miffed in his interview with Anne?
A.
Anne’s refusal was expected and hence didn’t irritate the author.
B.
He didn’t expect Anne to accept the job with eagerness.
C.
Many girls but Anne would be eager to get the job, because the author was a famous American movie star.
D.
Anne expected high pay for the job.
查看完整题目与答案
【单选题】执行下面的语句后, z 的值为多少 ( ) 。 int x = 1 ; int y = x++; boolean z = x>1 & y++>2;
A.
true
B.
false
C.
0
D.
1
查看完整题目与答案
【单选题】执行下面的语句后,x、y、z的值为()。 int x=7,y=9,z; z=(x>y)?x+y:x/y;
A.
7、9、16
B.
7、9、0
C.
16、9、16
D.
16、16、16
查看完整题目与答案
【简答题】A．People might put sugar in the salt container to fool others. B．People might change the time of other's alarm clock. C．People might tell a lie to give others a shock. D．Media might make false news to...
查看完整题目与答案
【单选题】They had to move away _________ there might be another earthquake.
A.
no wonder that
B.
no doubt that
C.
in case that
D.
for fear that
查看完整题目与答案
【单选题】不属于维护市场公平竞争的手段是( )。
A.
反补贴税；
B.
反倾销税；
C.
进口限额；
D.
绑架对方企业高管人员。
查看完整题目与答案
【单选题】有定义: int x=4,y,则执行下面两个语句: y=4*x++; x++; 后,x的值为( )
A.
4
B.
5
C.
6
D.
16
查看完整题目与答案
【单选题】下面语句执行后y的值为() int x = 0, y = 0; while (x < 10) y +=(x +=2)
A.
10
B.
20
C.
30
D.
55
查看完整题目与答案
【单选题】下面语句执行后y的值为() int x = 1, y = 1; do y <<= (++x); while (x < 4);
A.
16
B.
C.
138
D.
512
查看完整题目与答案
【单选题】Why did George laugh at Anne's question?
A.
Because the students always wore evening dress.
B.
Because it wasn't evening.
C.
Because all the students wore evening dress in June.
D.
Because he knew she had never seen formal dress worn in the morning before.
查看完整题目与答案
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