蒸汽在水环真空泵真空的作用下，进入（），在行进过程中被冷却成水。

证券价格充分反映了历史上一系列交易价格和交易量中所隐含的信息，从而投资者不可能通过对以往的价格进行分析而获得超额利润，这样的证券市场属于（）。

A.弱式有效市场

B.半弱式有效市场

C.半强式有效市场

D.强式有效市场

阅读理解

       Many people like exercise. Some like running and some like swimming.  A   And some people do

more than one kind of exercise. Why do people like ______ (exercise)? Because it makes them feel good. (1)And it helps make them tired and sleep better at night.

       Maybe you like to run.  B   If you do, look after your feet. (2) Make sure you have the right shoes.

Some people like to run on the roads, but they must take care. There are usually many cars. Other people

like to run around running tracks (跑道). There are running tracks in many schools.

       Maybe you like to swim.  C   If you like this kind of exercise, make sure that someone is watching

you. (3)而且当你在水里的时候必须时刻当心。

1、用括号内所给单词的正确形式填空：________

2、仿照画线句子(1)的句型结构翻译下列句子：多吃蔬菜有助于使你身体健康，提高学习效率。

3、句子“Others dance Or play ball games”应还原到文中A、B、C哪一处：    _______           

4、将画线句子(2)翻译成汉语：__________             

5、将画线句子(3)翻译成英语：_________________

设有表：order(订单号，客户号，职员号，签订日期，金额)
查询2007年所签订单的信息，并按金额降序排序，正确的SQL命令是

A) SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 DESC
B) SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 ASC
C) SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 ASC
D) SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 DESC

在《消费者权益保护法》中人身权利指______。

体检发现脚趾甲床发绀，而口唇和手指甲床无发绀( )

A．室间隔缺损
B．房间隔缺损
C．动脉导管未闭
D．肺动脉瓣狭窄
E．法洛四联症