问题 单项选择题

关于FSH与LH,下列哪项是错误的()

A.FSH与LH均是糖蛋白激素

B.FSH、LH、TSH、HCG均由α与β两条链形成

C.LH主要作用于已分化的卵泡膜细胞,合成性激素

D.FSH主要作用是促卵泡膜细胞形成

E.FSH与LH均呈脉冲式释放

答案

参考答案:B

阅读理解

阅读理解。

     "Who needs a shopping mall if you have Taobao?" says Wang Lin, 28, a writer in Beijing.

     Taobao, China's largest online shopping site (购物网站), has become an important part of Wang Lin's life.

She spends lots of money on Taobao.

     A growing number of Chinese Internet users like Wang have found the joys of online shopping. Most

online shoppers are students or young workers. More women shop on line than men. Clothing and home-use

products are the most popular on line.

    It was reported that more than 250 billion(十亿) yuan was spent on online shopping last year, 80% through

Taobao.

     Taobao means "looking for treasure (宝藏)" in Chinese. People can find almost everything they need on

Taobao, from clothes to books, from candies to DVD players.

     You may question the security (安全) of online shopping, Wang Lin said, "It's very safe and convenient

(便利的). The shop owner will not get the money unless you receive the products from the sellers and are

satisfied with them. You can also get your money back if you want to return the products."

1. What are the most popular on line?

A. Candies and DVD players.

B. Clothes and books.

C. Clothing and home-use products.

D. Treasure.

2. Taobao is ________.

A. a shopping mall

B. an online shopper

C. an online shopping site

D. a writer

3. Most online shoppers are ________.

A. young

B. old

C. babies

D. men

4. Which is the best title (标题) of the passage?

A. Wang Lin's life.

B. Online shopping in China.

C. Shopping on line is not safe.

D. Looking for treasure.

选择题