2006年技术秘密合同成交金额占全国技术合同总成交金额的比重是多少（） A．42.9

阅读理解。

     People have sailed (航行) around the world in quite small boats.  It is not an easy thing to do.

Sometimes the weather gets bad.  That can be the end of a boat, and the end of everyone in it.  

Accidents can happen easily and quickly.

     One family once had an accident with some big fish.  The fish swam under their boat and bit (咬) holes

in it.   The sea water came in,  of course,  and the boat soon sank (沉没).  Hr,  these people had another

small boat-a lifeboat,  and they all got into that.  They lived and hoped for many days.  They ate and

slept, and they always hoped.  At last a ship found them.

     How do people live in a very small lifeboat? Perhaps for weeks or months? They must be strong in

every way. They must have hope-they want to live. But you cannot cat and drink hope.

     You cannot drink sea water. Drink a lot of sea water and you will quickly die. Sailors (海员)  can

drink rain water. They must catch rain water in their boat. They must also catch fish and birds for food.  

Lifeboats do not carry a cooker (炊具), and so the sailors cannot cook their food.  Raw fish (生鱼) and

bird meat is not very nice. But there is no other choice in a lifeboatl The sailors must eat

raw food, or they will die.

     What do people think about in a life boat'l They think about land, a warm bed,dry clothes, fresh water and food, food, food.

1. When sailors' boat sinks, their lifeboat gives them _________.

A. food  

B. beds    

C. rainwater  

D. hope

2. One famil'y once had an accident at sea,  because _________.

A. their boat was caught in bad weather

B. the boat knocked against (对着) a rock and sea water came in

C. some fish bit through the bottom of their boat

D. one of them knew how to sail in the sea

3. Sailors can catch _________ for food and drink at sea in a lifeboat.

A. rain water                        

B. fish and birds

C. both sea water and rain water      

D. both A and B

4. Lifeboats do not often carry a cooker, which is _________.

A. something used for cooking  

B. food for cooking

C. a large box                

D. a person who cooks food

5. Which of the following is NOT true?

A. Sailing around the world in quite small boats is not easy.

B. All the food sailors have in a lifeboat is cooked fish and bird meat.

C. Anyone who drinks a lot of sea water will die.

D. No one can live for weeks in a lifeboat unless (除非) hc is strong and wants to live.

哪条眼外肌不起自眶尖的总腱环（）

A.上斜肌

B.上直肌

C.内直肌

D.外直肌

E.下斜肌

读图，回答下列问题。

（1）读图1，此时，若从两极上空看会看到图3中的________图（填序号）。此时，地球正处于公转轨道

    （图2）中的________位置上（填上A、B、C、D）。

（2）图1中D的时刻是______点，A点日出时刻是______点，这一天与A点同纬度的E点昼长是________小

    时。

（3）图1中A、E、C三点中，与B点时刻相同的是_________点，列举一个此时与E点太阳高度相同的点是

    __________点。

（4）关注图1中0°经线的位置，求此时北京时间是______点，太阳直射点的地理坐标是______________

    （经纬度）。

（5）图4为某地朝南窗户二分二至日正午阳光入射图，则该地可能为图1中的__________点。

关于机油耗量太大的预防措施，下列说法正确的有( )。

A．更换活塞等磨损件

B．清洗、调整、更换

C．调整压力调节器，检修有故障的压力表，更换黏度高的机油

D．紧固接头，更换油管

E．增加温度，降低散热效率

离地面高度等于地球半径的高处，重力加速度的大小是地球表面处的（   ）

A．2倍

B．4倍

C．

D．