问题 单项选择题 B型题

左旋多巴()

A.失神发作

B.重症肌无力

C.帕金森病

D.抗血栓

E.中枢性呼吸衰竭

答案

参考答案:C

解析:1.左旋多巴在脑内转变生成DA,补充递质的不足,发挥抗震颤麻痹作用,用于治疗帕金森病。 2.乙琥胺抗癫癎作用特点①与抑制神经元T型Ca通道有关;②仅为失神发作首选药。 3.前列环素是强大的血小板聚集内源性抑制药。 4.尼可刹米直接兴奋延脑呼吸中枢,提高呼吸中枢对C0的敏感性;也可通过刺激颈动脉体化学感受器,反射性兴奋呼吸中枢;使呼吸加深加快。

选择题
阅读理解

Mr. Baker lived in an old and low house. His wife was blind in both eyes and the two children were very young. All his family often went hungry(挨饿.) He had nothing but a small piece of field. One autumn he grew some wheat in his field. He hoped it would do well because all family would depend on it. The whole winter it often snowed. And the next spring the wheat was doing well. Mr. Baker was happy. One day Mr. Baker went to watch his wheat. To his surprise, a lot of crops were eaten up by a horse. He became angry but could not find out whose horse had eaten them. He thought the horse would go there again. So he decided to stay in his field and tried to catch the horse.

A few days later a yellow horse came in his field again and began to eat the wheat. Mr. Baker ran after it quickly, with a stick in his hand. But the beast ran much faster than he. He tried his best, but could not catch up with it. The next morning, when Mr. Baker was working in his field, he saw the yellow horse pulling carriage on the road. He picked up a stick at once, ran closer to the horse and began to beat it up.

The driver was surprised and stopped him. He asked, “Why are you beating my horse?”

“It has nothing to do with you, ” Mr. Baker said angrily. “The beast knows why I’m beating him!”

小题1:What was Mr. Baker?

A.A driver

B.A doctor

C.A keeper

D.A farmer小题2:Why was Mr. Baker happy at first?

A.Because wheat was doing well.

B.Because he would soon get a good harvest.

C.Because he found out the beast that ate up his wheat.

D.Because his family would not grow any more wheat.小题3:Mr. Baker tried his best to catch the horse to ____________.

A.sell it for some money

B.beat it up(痛打)

C.make it work for him

D.find out the owner of the horse小题4:Which of the following is true?

A.The horse knew that it had done wrong.

B.The horse had nothing to do with the driver.

C.The horse knew whose wheat it had eaten up.

D.The horse belonged to the driver.