若有如下二叉树，则对此二叉树前序遍历的结果为( )。

Chairman Mao once said: “It is not hard to do one good deed. It is hard to do good deeds all your life.” Guo Mingyi, 52, a worker in Anshan, Liaoning, did just that. Over the past 20 years, Guo has donated 60,000 milliliters(毫升) of blood. That is the blood of 10 people put together.

　　 Once, on a cold winter of 2009, Guo got a call from the hospital. The doctors told him that a patient needed a blood donation. Guo didn’t have time to eat lunch. He travelled in the snow to get to the hospital. When he finished donating the blood, he was so tired that he fell asleep on the hospital bed.

　　 Guo and his family live a simple life. He and his wife and daughter live in a house of only 40 square meters. They don’t have a lot of money, but Guo saves money to support poor children. In the past 16 years, he has donated over 100,000 yuan to more than 180 poor students. When the parents met him, many cried. “He looks poorer than us,” they said.

　　 Guo has also offered hands to thousands of workers, friends and strangers. His warm heart has moved many people. They call him a “Modern-Day Lei Feng”.

　　 Recently, Chinese leaders called on people to learn from Guo. They say young people especially should learn his selfless devotion(无私奉献).But Guo said he did these things in order not to get famous. “It’s just that some people need some help, and there should be someone standing out to give them a hand,” he said.

小题1:When was Guo Mingyi born in Anshan, Liaoning?

A．In 1940

B．In 1950

C．In 1960

D．In 1970小题2:Why did Guo Mingyi donate the blood to a patient on a cold winter of 2009?

A．Because they are good friends.

B．Because he had no money to eat lunch.

C．Because he wanted to sleep in the hospital

D．Because he wanted to help the patient very much.小题3:Which of the following is RIGHT about Guo Mingyi?

A．He is a common businessman.

B．He has a very rich family.

C．He wants to be famous a lot.

D．He devotes what he has to helping others小题4:What does the writer write the passage for?

A．To learn from Gou Mingyi’s selfless devotion.

B．To donate blood to the people in need.

C．To raise money for poor students.

D．To remember Lei Feng.小题5:Which part of the newspapers can we see the passage ?

A．Sports news

B．Health care

C．People

D．Nature

爬行动物是卵生动物，很多的爬行动物受精卵发育成雄性个体还是雌性个体，与孵化时的温度有关，分析下表中雄性个体出现的百分率，其中性别发育不受温度影响的是

温 度	22℃	24℃	26℃	28℃	30℃	32℃	36℃
密西西比鳄 / %	0	0	0	10	20	50	100
红海龟 / %	100	100	100	90	50	20	0
绿草蜥 / %	52	49	50	48	47	51	50

A. 密西西比鳄        B. 红海龟        C. 绿草蜥        D. 密西西比鳄和红海龟

下列各项中，除（）外，都是治疗癫病痰气郁结型处方用穴。

A.脾俞

B.肝俞

C.太溪

D.神门

E.太冲

公民享有的最基本、最重要的权利的是（）

A.财产权

B.受教育权

C.健康权

D.人身权

其他条件不变的情况下减小脱氢反应器的有效催化剂装载量则液时空速将（）。

A.增大

B.减小

C.不变

D.有不确定的变化