若二叉树中度为2的结点有15个,度为1的结点有10个,则有______个叶结点。(

题型:单项选择题

问题:

若二叉树中度为2的结点有15个,度为1的结点有10个,则有______个叶结点。( )

A.25

B.30

C.31

D.16

考点:农村信用社招聘考试计算机知识农村信用社公开招聘考试计算机
题型:单项选择题

单词拼写。

1. John snow wanted to face the _____ (挑战) and solve the problem.

2. His heart disease has been _____ (治愈).

3. England is _____ (划分)roughly into three zones.

4. They are _____ (不愿意)to face the facts.

5. Geatly to your _____ (赞扬), you helped the woman find her son.

6.We can't travel to the United States for _____ (缺乏)of money.

7.Wat he said at the meeting left a deep _____ (印象)on us.

8.They said the problem was in the engine, which was what I had ___(怀疑).

9. The rich man _____ (捐赠)a lot of money to the Red Cross.

10. _____ (吸引) by the football match,the man forgot to do his work.

题型:单项选择题

—Would you like to go and watch the football game with me?

        .

A.Not at all

B.Excuse me, I can’t

C.Yes, I’d love to

D.That’s right

题型:单项选择题

用酸度计测定溶液的酸度,若溶液的pH为4左右,对酸度计进行校正时需选用的标准缓冲液是

A.邻苯二甲酸氢钾标准缓冲液(pH4.00);

B.磷酸盐标准缓冲液(pH6.86)

C.邻苯二甲酸氢钾标准缓冲液(pH4.00)和磷酸盐标准缓冲液(pH6.86)

D.磷酸盐标准缓冲液(pH6.86)和硼砂标准缓冲液(pH9.18)

E.草酸三氢钾标准缓冲液(pH1.68)和磷酸盐标准缓冲液(pH6.86)

题型:单项选择题

抹香鲸大量吞下带钩的乌贼后,消化道受到刺激,就会呕吐出什么香来?

题型:单项选择题

女性,40岁,有消化性溃疡病史,今日出现呕血及黑粪,病人出冷汗,脉搏细速,呼吸浅促,血压下降,估计出血量为

A.400~500ml
B.500~600ml
C.600~700ml
D.>800ml
E.700~800ml

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