青霉素在体内的主要消除方式是( )。A．胆汁排泄 B．肾小管分泌 C．被血浆酶破坏

有一位科学家是世界上第一个把圆周率的数值计算到小数点以后第七位的人，他还发明了“千里船”，为了纪念他的贡献，月球上有座环形山以他的名字命名。这位科学家是[ ]

A．贾思勰

B．祖冲之

C．张衡

D．郦道元

（1）把3米长的绳子平均分成5份，每份是这条绳子的______，每份长______米．

（2）杷5千克的水果平均分成9份，每份是这些水果的______，每份重______kg．

下列各组词语中，没有错别字的一组是

A．俸禄 切蹉 投桃报李 一笑泯恩仇

B．发轫 枢纽 并行不悖 久旱逢甘霖

C．花哨 原委 如雷贯耳 时事造英雄

D．调剂 伸张 促不及防 真人不露相

Christian Eijkman, a Dutch doctor, left the Netherlands for the island of Java. Many people on the island had a disease called beri-beri. He was going there to try and find a cure.

At first, Eijkman thought some kind of germ (细菌) caused beri-beri. He raised some chickens. He didn’t eat them, but made experiments on them. The local people were quite surprised at that. One day he noticed that his chickens became sick when they were fed the food most Javanese ate — refined white rice (精炼米). When he fed them with unrefined rice, also known as brown rice, they recovered. Eijkman realized that he had made an important discovery — that some things in food could prevent disease. These things were named vitamins (维生素). The Javanese were not getting enough vitamins because they had actually removed the part that contains vitamins. Later, other diseases were also found to be caused by the lack of vitamins in a person’s food.

Today many people know the importance of vitamins and they make sure they have enough vitamins from the food they eat. If they don’t, they can also take vitamin pills.

小题1:The underlined word “cure” in Paragraph 1 probably means ______.

A．a medical treatment

B．a kind of vitamin

C．a kind of germ

D．a kind of rice小题2:Christian Eijkman went to the island of Java to ______.

A．spend his holiday

B．find ways to grow better crops

C．do some research about the island

D．help the Javanese with their illness小题3:Why did Christian Eijkman raise some chickens?

A．To eat them.

B．To carry out his experiments.

C．To give the Javanese a surprise.

D．To make money by selling them.小题4:If a person doesn’t get enough vitamins in his diet, he’d better ______.

A．eat more rice

B．eat more meat

C．eat some chicken

D．eat vitamin pills小题5:We can learn from the passage that ______.

A．beri-beri was caused by chickens

B．the Javanese didn’t like vitamins

C．Christian Eijkman’s experiment was successful

D．the Javanese’s disease was caused by a kind of germ

“由于历史上的不平等、种族歧视美国黑人比白人自杀率更高”这种理论假说的形成途径是（）。

A.归纳推理法

B.类比推理法

C.逻辑推理法

D.演绎推理法