【单选题】【消耗次数：1】
在一棵度为3的树中，度为3的结点数为2个，度为2的结点数为1个，度为1的结点数为2个，则度为0的结点数为（ ）个。
①
4
②
5
③
6
④
7
参考答案：
复制
纠错
相关题目
【单选题】
设一棵m叉树中度数为0的结点数为N0，度数为1的结点数为Nl，……，度数为m的结点数为Nm，则N0=（）。
①
Nl+N2+……+Nm
②
l+N2+2N3+3N4+……+(m-1)Nm
③
N2+2N3+3N4+……+(m-1)Nm
④
2Nl+3N2+……+(m+1)Nm
【单选题】
设某二叉树中度数为0的结点数为N0，度数为1的结点数为Nl，度数为2的结点数为N2，则下列等式成立的是（）。
①
N0=N1+1
②
N0=Nl+N2
③
N0=N2+1
④
N0=2N1+l
随机题目
【多选题】
Many young adults, who have had no_________ to receive further education before, are eager to develop their abilities.
①
skill
②
degree
③
chance
④
opportunity
【单选题】
In the United States, television stations are not_________ by the government.
①
run
②
ran
③
runs
④
running
【单选题】
You remember things every day, but_________ do you do it?
①
what
②
which
③
how
④
where
【单选题】
Various_________ are offered in adult educational institutions.
①
courses
②
cases
③
calls
④
cars
【单选题】
When you send a letter or a postcard, you have to put_________ on th envelope or on the card.
①
mails
②
parcels
③
receipts
④
stamps
【判断题】
<img src=http://p.ananas.chaoxing.com/star3/origin/44ee0085c9af58bc60f06911bcbd9b31.png/>
①
正确
②
错误
【判断题】
<img src=http://p.ananas.chaoxing.com/star3/origin/6274fb53f064640c3d7be359685699ec.png/>
①
正确
②
错误