问题 问答题 简答题

基底神经节病变的症状与定位诊断。

答案

参考答案:

基底神经节病变的症状与定位诊断:①基底神经节病变的主要表现为肌张力的改变张力减低和动作过多,如舞蹈样动作、手足徐动症和扭转痉挛。②旧纹状体(苍白球)病变可引起肌张力增高,动作减少及静止性震颤。③丘脑底核病变可引起偏侧投掷运动。常见的基底节病变症状大多表现为双侧,如为一侧症状,其病变应在对侧相应的基底节。

阅读理解

阅读理解

       Most people smoke the first cigarette when they're teenagers(青少年) .In fact,80% of smokers

begin the habit before they turn 18. Here are a few facts about cigarette smoking,which are worth

keeping in mind when your friends and relatives light up (点燃) cigarettes.

       ●Nearly 70% of people who smoke say they wish they could quit. Teens who smoke cough three

times more thanteens. who don't smoke.

       ●Smoking causes cancer, heart disease, lung disease and so on.

       ●More than 434,000 Americans die each year from smoking-related diseases.

       ●Smoking makes you feel weaker and more tired because it prevents oxygen from reaching your

heart.

       ●Smoking decreases (减少) your sense of taste and smell,making you enjoy things like flowers

and fruit a little bit less.

       ●Smoking hurts the people around you:More than 53,000 people die each year from second-hand

smoke.

1.        out of 10 smokers begin to smoke before the age of 18.

A. 6      

B. 7      

C. 8      

D. 9

2. What's the meaning of the underlined word " prevent" ?

A. stop          

B. develop

C. improve      

D. protect

3. The writer wrote this passage mainly to the people aged        .

A. three to nine            

B. thirteen to nineteen

C. thirty to forty            

D. fifty to sixty

4. What is this passage mainly about?

A. Cigarette smoking can cause cancer.

B. You should enjoy fruit a lot.

C. Second-hand smoke may kill the people around us.

D. A few facts about cigarette smoking you should know.

单项选择题