问题 单项选择题

38岁孕妇,妊3产0,自然流产2次,现孕16周。

关于甲胎蛋白,以下哪项是不正确的

A.主要产生于卵黄囊和胎JL肝脏

B.羊水AFP值在孕中期比孕晚期高

C.羊水AFP值在36周以后与母血清 AFP值相近似

D.AFP异常增高是胎儿患有开放性神经管畸形的重要指标

E.孕妇血清AFP值随孕周而上升,一直到孕40周才有所下降

答案

参考答案:E

阅读理解

阅读理解

     In order to know a foreign language thoroughly(完全地), four things are necessary. First, we must

understand the language when we hear it spoken. Secondly, we must be able to speak it ourselves,

correctly with confidence(自信) and without hesitation(犹豫). Thirdly, we must be able to write it. We

must be able to make sentences that are correct in grammar.

     There is no short way to succeed in language learning. A good memory(记忆) is a great help, but it is

not enough only to memorize the rules from a grammar book. It is no much use learning by heart long lists(一览表) of words and their meanings, studying the dictionary and so on. We must learn by using the

language. If we are pleased with a few rules we have memorized, we are not really learning the language. We must "Learn through use". Practice is important. We must practise speaking and writing the language

whenever(无论何时) we can.

1. The most important things to learn a foreign language are_______.

A. understanding and speaking    

B. hearing, speaking, reading and writing

C. writing and understanding      

D. memorizing and listening

2. Someone hears and writes English very well, but he speaks it very badly. This is because____.

A. he doesn't understand the language when he hears it spoken

B. he doesn't have a good memory

C. he always remember lists of words and their meanings

D. he often hesitates to practice speaking it

3. One can never learn a foreign language well only by_______.

A. much practice             

B. studying the dictionary

C. learning through use

D. using the language

4. Which of the following is the most important in learning a foreign language?

A. A good memory.

B. Speaking        

C. Practice      

D. Writing.

5."Learn through use" means_______.

A. we use a language in order to learn it

B. we learn a foreign language in order to use it

C. we can learn a language well while we are using it

D. both B and C

单项选择题