恙虫病应首选A．四环素 B．氯霉素 C．青霉素类 D．头孢菌素类 E．大环内酯类

地球外存在着智慧生命是人类很早就提出的一个假说，可直至今天也没有被证实。美国科学家在20世纪70年代发射了携带着地球多人种信息的宇宙飞船，期望有朝一日能被太阳系之外可能存在的智慧生命收到并发回讯。可据专家们估计，飞船要飞到距太阳系最近的恒星体系，需要八万年的时间。这说明  [ ]

A．科学有时能成为检验认识真理性的标准  

B．由于实践的有限性，人类不具有彻底认识世界的能力  

C．在特定的历史条件下，人们的认识具有有限性的一面  

D．有些认识不能依靠实践检验，只能依靠逻辑推导证实

摘除了桃花的（　　）后，桃花就不能发育成果实．

A．花瓣

B．花药

C．雄蕊

D．雌蕊

Here is a true story about a famous man who worked in the White House and a criminal. They once faced the same thing: their mother gave them apples when they were young.

The criminal said: one day, my mother brought some apples and asked my brother and me: “Which do you want?” “The reddest and biggest one,” my little brother said. My mother stared at him and said to him angrily: “You should learn to give the good things to others; you shouldn’t always think of yourself.” Seeing this, I suddenly changed my idea and then said to my mother: “Mum, please give me the smaller one and give the bigger one to my little brother.” Hearing my words, my mother was very happy. She kissed me on my face and gave the reddest and biggest apple to me as a prize. From then on, I learned to tell lies, fight, steal and rob. In order to get what I wanted, I played hard. As a result, I was sent into prison.

The famous man from the White House said: One day, my mother brought some apples. She said to my brother and me: “You all want the reddest and biggest one, right? Well, let’s have a competition. Now I divided the grassland in front of the gate into two and I will give one to each of you and you must shear(修剪) it well. And I will give the reddest and biggest apple to him who does it the most quickly and best.”

After the competition, I won and I got the biggest apple. In our family, as long as you want to get the best things, you must take part in competition. I think it is fair. No matter what you want, you must pay lots of efforts.

小题1:The criminal got the reddest and biggest apple because      .

A．he told the truth that he wanted a smaller one

B．he knew how to make his mother happy from her answer

C．elder brother should of course have the bigger one

D．his mother loved him more than she loved the younger brother小题2:We can conclude from the passage that      .

A．it’s wrong to ask children to choose apples when they are not old enough

B．it’s important to make children aware that no matter what they want, they must pay work

C．it’s wrong to ask children not to always think of themselves

D．it’s always necessary to have a competition when we give children apple小题3:The writer tells the story by      .

A．organizing it in the order of time

B．making a comparison between two men

C．providing some scientific information

D．describing it in the order of space小题4:It is implied in the passage that      .

A．we should always try to win competitions which can bring us a lot

B．in order to get what we want, we should play hard

C．a mother’s educational method has a great influence on a child’s growing

D．giving children apples will lead them to become criminals

2011年3月1日，机构投资者甲从二级市场购入乙公司发行的股票100万股，每股价格10元，另支付交易费用1万元。甲购入股票后，拟随时准备出售。乙公司于2011年3月5日宣告每股分配现金股利0.1元，甲于3月10日收到现金股利10万元。2011年3月20日，甲以每股11元的价格将股票全部出售，另支付交易费用1万元。则2011年3月甲应确认的投资收益为( )万元。

A．0
B．109
C．108
D．98

附睾炎在不同阶段的声像图表现是（）

A.附睾增大

B.附睾显示中等回声

C.化脓时附睾出现无回声区

D.如有钙化，后方出现声影

E.以上都是