男性，50岁。不慎左季肋部撞在石块上致脾破裂，血压1108.0kPa(80/60mm

由10个元素组成的集合有______个子集．

阅读理解。

     If you see overweight like eighty million other Americans, there is still hope for you.

   What you need is to change your eating habits forever. You begin by keeping a complete record of

what, where, when and how you eat. Once you understand your bad eating habits, you will find it easier

to exchange them for good ones. So keep a diary answering the following questions:

     What do I eat during a day? Record every bit of food and drink you put in your mouth. This includes

that cracker you ate while opening the can ofsoup. It includes that Coca Cola you sipped from your

friend's glass. It includes your chewing gum. And remember when you stuck your finger I the peanut

butter jar. Remember everything! Most people are astonished at what they eat and drink in one day.

Behavior Change: Make a list of what you plan to eat during the day and follow your plan.

     Where and when you eat? Do you eat standing or lying? Do you eat while cooking, reading watching

TV or driving? Do you eat when upset, angry, worried, or hurried? Do you reward or punish yourself

with food? Behavior Change: Eat three planned meals only. Sit up straight at your table. Do nothing but

eat.

     How do I eat ? Most of us eat on the run. When we eat fast , our stomachs don't get the message

that we are full. So we keep eating. Behavior Change: look at your food . Give yourself a chance to resist

its sight and small. Chew slowly. Cut up your food into small pieces and eat one piece at a time. Let your

food digest and listen to the message from your stomach before you reach for seconds.

1. What is the main idea of this passage?    

A. Don't worry if you are overweight.

B. Eat less and drink less if you are overweight.

C. This passage urges you to lose weight by changing you eating habits.

D. Keep good eating habits whatever and however you eat.

2.  The sentence "Most people are astonished at what they eat and drink inone day" implies _____.    

A. we don't know how much we eat  

B. we eat so little in one day

C. we eat too much in one day        

D. we eat a lot in one day

3. The underlined word "cracker" in the third paragraph probably means_____.

A. a kind of food  

B. a kind of drink  

C. a way you eat  

D. a tool for opening a can

4. The author suggests that you should not reach your hand for some more food _____.      

A. before you feel full  

B. after you get the message that you are full

C. before you get the message that you are full  

D. after your food digests

论坛签名营销可以借助别人的（）进行营销

A.话题营销帖

B.热帖

C.名帖

D.置顶帖

燃料合同签订后，出现哪些法定情形时可解除合同？

钢丝球只适宜较粗糙的地板表面，木板、（）较光洁的表面不能擦拭。擦拭时不可用大力，以免损伤物体（），同时使之失去光泽。