简述会展评估的意义。

Taobao, China’s largest online shopping site , 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 shoppinng. 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 yuan was spent on online shopping in the year 2012, 80% through Taobao.

Taobao means “looking for treasure” 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 of online shopping, Wang Lin said, “ It's very safe and convenient. Unless you receive the products from the sellers and are satisfied with them, the shop owner will not get the money. You can also get your money back if you want to return the products.”

小题1:What is Taobao?

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小题2:Who are the most online shoppers?

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小题3: Do more men shop on line than women?

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小题4:What can you do if you want to return the products?

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小题5:How much did people spend on online shopping through Taobao in the year 2012?

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测定黏性土液限的方法有( )。

A．法 (B

B．限联合测定

长期使用化学杀虫剂，家蝇、蚊子的抗药性越来越强，其原因是（ ）。

A．化学杀虫剂对害虫抗药性变异个体长期的自然选择结果

B．害虫的抗药性对化学杀虫剂长期选择的结果

C．使用杀虫剂后，害虫才产生抗药性

D．使用杀虫剂后，改变了害虫的生理特性，使其抗药性增强

工伤保险基金按月支付伤残津贴，一级伤残为本人工资的80%。

当需要查询Oracle的控制文件的名称、位置和状态时，可以使用（）语句。

A.SELECT name FROM V$CONTROLFILE

B.SELECT name FROM V$CTRLLFILE

C.SELECT name FROM V$USERFILES

D.SELECT name FROM V$DBAFILE