【简答题】【消耗次数：1】
[a, b][b, c][c, a]=[ab, bc, ca]x[填空].
参考答案：
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相关题目
【简答题】
[a, b, c](ab, bc, ca) = [填空].
【判断题】
设A、B、C为三事件，若满足：P(AB)=P(A)P(B),P(AC)=P(A)P(C),P(BC)=P(B)P(C),则三事件A、B、C 必然相互独立。
①
正确
②
错误
【单选题】
执行以下程序段后、变量a,b,c的值分别是一。intx=10,y=9;inta,b,c;a=--x==y++)?--x:++y;b=x++;c=y;
①
a=9,b=9,c=9
②
a=8,b=8,c=10
③
a=9,b=10,c=90)a=1,b=11,c=10
【单选题】
下列程序执行后的输出结果是
#includevoid main( )
{ int a=5,b=60,c;
if (ab)
{c=a*b;printf(%d*%d=%d\n,b,a,c);}
else
{c=b/a;printf(%d/%d=%d\n,b,a,c);}
}
①
60/5=12
②
300
③
60*5=300
④
12
【单选题】
若变量已正确定义，有以下程序段int a=3,b=5,c=7;if(ab)a=b;c=a;if(c!=a)c=b;;printf(%d,%d,%d\na,b,c)其输出结果是
①
语法错误
②
3,5,3
③
3,5,5
④
3,5,7
【单选题】
P(A)=P(B)=P(C)=1/8，P(AB)=1/4，P(BC)=P(AC)=0,则事件A,B,C至少有一个发生的概率是（ ）
①
1/2
②
1/4
③
1/6
④
1/8
【判断题】
对于可逆矩阵A,B,<img class=jc-formula data-tex={ (AB) }^{ -1 }={ A }^{ -1 }{ B }^{ -1 } src=https://huaweicloudobs.ahjxjy.cn/4D0D5CA61C6CEACD30AEE46B39C339BC.png style=vertical-align: middle;/>
①
正确
②
错误
随机题目
【单选题】
Some famous singers live on the ____ from their record sales.
①
salary
②
price
③
bill
④
income
【单选题】
Lucy was ____ and quiet while her brother was sure and noisy.
①
angry
②
hungry
③
painful
④
shy
【单选题】
-Which job do you think I should take the counter’s job or the waiter’s job?-____.
①
That’s all right
②
It’s your own matter
③
It’s up to you
④
It’s none of your business
【单选题】
30. -Would you like to have tea or coffee? - ____.
①
Either will do
②
Neither do I
③
It doesn’t matter
④
Yes, please
【单选题】
While
reading the newspaper, ____.
①
a
colorful advertisement caught my eyes
②
my attention was attracted by an advertisement
③
I
was attracted by a colorful advertisement
④
What attracted my eyes was a colorful
advertisement
【单选题】
Although she was frightened, she answered with a ____ voice.
①
quiet
②
silent
③
still
④
calm
【单选题】
Neither Sandynor her brother ____ the concert.
①
is going to
②
are going to
③
are going to go
④
is go