苯甲酸及其钠盐是应用很广的化学防腐剂，在酸性环境下能抑制微生物生长．苯甲酸的化学

下列有关细胞分化的叙述不正确的是（　　）

A．细胞分化不使细胞的数目增多

B．分化的细胞会呈现出在形态、结构和功能上的差异

C．细胞分化的结果是形成各种组织

D．植物的形成过程中，可以不进行细胞分化，而只进行细胞分裂

《证券法》的基本原则不包括( )。

A．公开、公平、公正原则

B．混业经营、混业监管原则

C．自愿、有偿、诚实信用原则

D．保护投资者合法权益

可用于根治间日疟：

A．周效磺胺

B．青蒿素

C．二者均可

D．二者均否

阅读理解。

     Are some people born clever, and others born stupid? Or is intelligence developed by our environment

and our experiences? Strangely enough, the answer to both these questions is yes. To some extent our

intelligence is given us at birth, and no amount of special education can make a genius out of a child born

with low intelligence. On the other hand, a child who lives in a boring environment will develop his

intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person's intelligence

are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now

held by most experts, can be supported in a number of ways.

      It is easy to show that intelligence is to some extent something we are born with. The closer the blood

relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated

people at random from the population, it is likely that their degrees of intelligence will be completely different.

If on the other hand we take two identical twins they will very likely be as intelligent as each other. Relations

like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that

intelligence depends on birth.

     Imagine now that we take two identical twins and put them in different environments. We might send one,

for example, to a university and the other to a factory where the work is boring. We would soon find

differences in intelligence developing, and this indicates that environment as well as birth plays.

     This conclusion is also suggested by the fact that people who live in close contact with each other, but

who are not related at all, are likely to have similar degrees of intelligence.

1. Which of these sentences best describes the writer's point in Paragraph 1?

A. To some extent, intelligence is given at birth.

B. Intelligence is developed by the environment.

C. Some people are born clever and others born stupid.

D. Intelligence is fixed at birth, but is developed by the environment.

2. It is suggested in this passage that ______.

A. unrelated people are not likely to have different intelligence

B. close relations usually have similar intelligence

C. the closer the blood relationship between people, the more different they are likely to be in intelligence

D. people who live in close contact with each other are not likely to have similar degrees of intelligence

3. Brothers and sisters are likely to ______. 　

A. have similar intelligence

B. have different intelligence 　

C. go to the same university

D. go to the same factory

4. The best title for this article would be ______. 　

A. On Intelligence　

B. What Intelligence Means

C. We Are Born with Intelligence

D. Environment Plays a Part in Developing Intelligence

某县某村居民王某于2004年3月申请到一决宅基地，决定建造一栋二层共12间房的楼房。建到同年7月，王某资金不足，遂找到邻居刘某筹款，双方签订书面合同约定，刘某借给王某8万元建房，以其中在建的6间房为抵押，1年后如王某不能归还本金8万元和利息4千元(没有超过银行同期利率)，则房屋归为双方共有，各人得3间房屋；且该房屋建成后，要留出3间给刘某堆放杂物，刘某付少量费用意思一下。2005年3月，该房建成，王某将第二层的3间房交给刘某堆放东西。同年4月初，王某登记房屋产权时，将产权登记为自己单独所有。同年7月底，王某到期不能还借款，刘某提出按照协议分割房屋，双方各得一半，并要求办理登记手续，王某表示同意，并且又在一层拨出3间房给刘某，但王某一直没有时间办理产权变更登记手续，刘某也未实际搬进该房。同年10月，王某找到赵某，提出愿以22万元出售该房屋，并向赵某出示了房屋产权证，赵某同意购买，王某收回刘某占用的6间房，并与赵某进行了房屋变更登记。