用于铜、汞、铅中毒的解毒药物是 A．青霉胺 B．亚硝酸钠 C．谷胱甘肽 D．亚甲

"子宫"一词最早见于：（）

A.《易经》

B.《诗经》

C.《山海经》

D.《内经》

E.《神农本草经》

患儿女，7岁。低热、轻咳3周。查体：体温38.5℃，营养差，左背下部听诊呼吸音减低，接种过卡介苗，PPD试验（+++）。

该患儿首选的检查为（）

A.结核抗体测定

B.痰找结核菌

C.纤维支气管镜检查

D.胸部X线检查

E.胸部CT检查

某种物质经滤过后既不被重吸收，又不被分泌，其血浆清除率（）

A．等于零

B．等于肾小球滤过率

C．等于每分钟肾的血浆流量

D．大于125ml/min

E．小于125ml/min

第三部分 阅读理解(共20小题；每小题2分，满分40分)

阅读下列短文，从每题所给的四个选项A、B、C和D中，选出最佳选项。

Tears are nature’s way of making us feel more comfortable. When our eyes are made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted and “red-eyes” from over work and late hours, tears form in our eyes to clean and refresh them.

Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.

And tears seem to be uniquely human. We know that animals also experience emotion--fear, pleasure, loneliness, but they do not shed (流) tears.

Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland (腺) in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.

And it is clear that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge (合并) into one and make us even more “human” than we would otherwise be.

1. According to the passage, human beings may have originated in

A. the sea         B. the salt              C. chemicals            D. animals

2. Which of the following is NOT a function of tears?

A. Biological.      B. Emotional.           C. Political.             D. Chemical.

3 According to the article, which of the following is unique to humans?

A. The feeling of loneliness.                 B. The state of feeling good.

C. The ability to shed tears.                D. The feeling of fear.

4. The underlined word "eliminate" probably means

A. add             B. produce             C. replace               D. remove

改正下列叙述中的错误。“刖”是从刀，月声。“到”是从刀，至声。“期”是从月，其声。“胳”是从月，各声。