代谢障碍而引起白化病的氨基酸是属于() A.酸性氨基酸  B.碱性氨基酸  C.芳香

题型:单项选择题

问题:

代谢障碍而引起白化病的氨基酸是属于()

A.酸性氨基酸 

B.碱性氨基酸 

C.芳香族氨基酸 

D.含硫氨基酸 

E.支链氨基酸

考点:临床执业医师生物化学氨基酸代谢
题型:单项选择题

宿主的防御反应与牙周病,错误的是()

A.炎症早期,宿主的防御反应以保护性机制为主

B.病变持续进行时,宿主的防御反应导致组织的破坏

C.中性粒细胞产生的溶酶体酶对牙周组织有损伤作用

D.体液和细胞免疫产生的效应物质对牙周组织有损伤作用

E.宿主的防御反应对牙周组织均是破坏性的

题型:单项选择题

早、中、晚三餐合理的能量分配是()

A.25%、40%、35%

B.30%、40%、30%

C.35%、40%、25%

D.40%、35%、25%

E.35%、35%、30%

题型:单项选择题

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,并在答题卡上将该项涂黑。

A

When I was young, I went looking for gold in California.I never found enough to make me rich.But I did discover a beautiful part of the country.It was called "the Stanislau".The Stanislau was like Heaven on Earth.It had bright green hills and deep forests where soft winds touched the trees.

Other men, also looking for gold, had reached the Stanislau hills of California many years before I did.They had built a town in the valley with sidewalks and stores, banks and schools.They had also built pretty little houses for their families.

At first, they found a lot of gold in the Stanislau hills.But their good luck did not last.After a few years, the gold disappeared.By the time I reached the Stanislau, all the people were gone, too.

Grass now grew in the streets.And the little houses were covered by wild rose bushes.Only the sound of insects filled the air as I walked through the empty town that summer day so long ago.Then, 1 realized I was not alone after all.

A man was smiling at me as he stood in front of one of the little houses.This house was not covered by wild rose bushes.A nice little garden in front of the house was full of blue and yellow flowers.White curtains hung from the windows and floated in the soft summer wind.

Still smiling, the man opened the door of his house and signed to me.1 went inside and could not believe my eyes.I had been living for weeks in rough mining camps with other gold miners.We slept on the hard ground, ate canned beans from cold metal plates and spent our days in the difficult search for gold.

Here in this little house, my spirit seemed to come to life again.

I saw a bright rug on the shining wooden floor.Pictures hung all around the room.And on little tables there were seashells, books and china vases full of flowers.A woman had made this house into a home.

The pleasure I felt in my heart must have shown on my face.The man read my thoughts."Yes," he smiled, "it is all her work.Everything in this room has felt the touch of her hand."

One of the pictures on the wall was not hanging straight.He noticed it and went to fix it.He stepped back several times to make sure the picture was really straight.Then he gave it a gentle touch with his hand.

56.According to the passage, the Stanislau was _____.

A.an independent country       B.a beautiful part of California

C.a rough mining camp    D.an almost bare mountain

57.The writer writes the passage mainly to _____.

A.recall his experience in California B.persuade people to visit the Stanislau

C.introduce the couple he met        D.offer tips on searching for gold

58.Which of the following can best describe the couple?

A.Ambitious but selfish.           B.Hopeful and merciful.

C.Warm-hearted and contented.      D.Enthusiastic but hopeless.

59.What's the correct order of the events?

a.I went to California in search of gold.

b.A town was built in the valley.

c.I came to the front of a little house.

d.The man put the picture straight.

e.I walked through the empty town.

A.b, a, e, c, d                B.b, a, c, e, d      

C.a, b, e, c, d             D.a, b, e, d, c

题型:单项选择题

关于血浆渗透压,说法正确的是()

A.临床以mmol/L表示体液渗透压

B.正常葡萄糖和尿素氮对渗透压影响不大,但明显升高时,可导致高渗状态

C.NA+是维持血浆渗透压的主要因素

D.血浆渗透压=2(Na++K+)+葡萄糖+尿素氮(mmol/L)

E.Ca2+是维持血浆渗透压的主要因素

题型:单项选择题

子宫肌瘤需行子宫切除的是()

A.绝经后妇女,子宫如妊娠6周大小

B.妊娠子宫肌瘤红色变性

C.肌瘤不大,月经量稍多

D.多发性肌瘤较大,症状明显

E.浆膜下或肌壁间较小的肌瘤

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