题目内容
（请给出正确答案）
[单选题]
将三个变量apple、pear、banana输出，下列语句正确的是（）
A.cout>apple>>pear>>banana
B.out< C.cout<
答案
D
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.cout>apple>>pear>>banana
B.out< C.cout<
答案
D
如果结果不匹配，请 联系老师 获取答案
更多“将三个变量apple、pear、banana输出，下列语句正…”相关的问题
A.{"orange":23,"apple":10,"pear":12}
B.{"orange":23,"apple":10,"pear":22}
C.{"orange":23,"apple":10}
D.['apple':10,'pear':12,'orange':23]
A.为变量赋值：$FRUIT=apple
B.显示变量的值：fruit=apple
C.显示变量的值：echo $FRUIT
D.判断变量是否有值：[-f“$FRUIT”]
Many months after, four thousand miles away, a group of United States Marines found a little Chinese girl. No one could tell how she had got there. She refused to talk or give her name. The captain who spoke Chinese named her Patsy Lee because he thought she looked like a white plum blossom.
When the New York Times told about the finding of "Patsy Lee", Mrs. Li's sister saw the news and wrote to her sister about it. Could Patsy Lee be the lost child Patsy Li？ The mother made the long voyage to find out. The little "white plum blossom" was indeed her own Pasty Li.
According to the story, what does "Patsy Li" mean？
A．White apple blossom.
B．White peach blossom.
C．White pear blossom.
D．White plum blossom.
设将FR共轭梯度法用于有三个变量的函数f(x)，第1次迭代，搜索方向d(1)=(1，一1，2)T，沿d(1)作精确一维搜索，得到点x(2)，又设
那么按共轭梯度法的规定，从x(2)出发的搜索方向是什么？
用集成电路芯片74LS161设计一个计数器，自动完成3位二进制加/减循环计数，状态转换图如图T9.4-1(a)所示，要求只能用三个2输入异或门和一个3输入与非门实现，如图T9.4-1(b)所示。
提示：将74LS161的输出作为输入变量，3位二进制加/减循环计数器的状态作为输出变量，列出状态转换真值表，其中状态1000不用，并用端作为加/减转换控制。
