蛇头疔最常用的验脓法：A．穿刺法 B．应指法 C．B超 D．透光法 E．点压法

阅读理解。

     Ivan Fletcher loves crazy inventions. He writes a weekly magazine column (专栏) called Unbelievable

Inventions.

     "One of my favorite inventions is the Butter Stick. It looks like a glue, but it's butter. You spread it on

the bread without using a knife," he says. "Another cool invention is Duster Slippers for pets. You put these

special shoes on your dog or cat. As the animal runs around your house, it collects dust from the floor. Very

useful!" A lot of these inventions come from Japan-the home of the crazy invention.

     Ivan says that the British also invent a lot of crazy things. "The other day I found an invention called a

Cat Seat Saver," he says. "The Cat Saver looks exactly like a sleeping cat-but it isn't real. You put it on your

seat if you have to go to the rest room. No one will sit in your seat because they think there's a sleeping cat

on it. Pretty cool!"

     However, does anyone buy these things? Yes. Lucy Wade from the shopping website crazygadgets.com

says that their customers are young, professional people.

     "They buy these small things mostly for fun," she says. "They are usually looking for a present for a

friend's birthday or a silly girl for someone they work with."

     If you have an idea for an amazing invention, send it to Lucy at lucyw@crazygagets.com.

     Fish Radio

     This useful radio is completely waterproof, so you can listen to it in the shower. Simply stick on the

bathroom wall and sing along to your favorite songs as you shower!

     Watch Your Back Mirror

     Don't get caught surfing the Internet or sending e-mails to your friends. Stick this mirror to your computer

screen and you'll be able to see when the boss is coming!

1. One of the inventions that Ivan Fletcher likes best is _____. 

A. the Fish Radio

B. the Butter Stick

C. the Watch Your Back Mirror

D. the Cat Seat Saver

2. You put the Duster Slippers _____.

A. on your pet's feet

B. on your feet

C. on your pet's head

D. on the floor

3. The Cat Seat Saver _____.

A. is a special mirror

B. is a chair for cats

C. looks like a real cat

C. collects dust from the floor

4. Why is the Fish Radio useful?

A. It is shaped like a fish.

B. It sings your favorite songs.

C. You can listen to it in the shower.

D. It is small enough to put in the bathroom.

如果两圆的半径分别为4和6，圆心距为10，那么这两圆的位置关系是【   】

A．内含

B．外离

C．相交

D．外切

Both of my parents insist ______ a computer for me, but I don’t think it is necessary.

A．to buy

B．on buying

C．buying

D．in buying

（C）

Astronaut Jim Voss has enjoyed many memorable moments in his career，including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound（为地球引力所束缚的）experience in the summer of 1980 when he participated in the NASA ASEE Summer Faculty Fellowship Program. Voss， then a science teacher at West Poin，was assigned to the Marshall Space Flight Center's propulsion（推进） lab in Alabama to analyze why a hydraulic fuel pump seal （液压燃料泵的密封圈）on the space shuttle（航天飞机） was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program. Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them.

“I worked a bit with NASA engineers，” says Voss， “but I did it mostly by an analysis. I used a handheld calculator， not a computer， to do a thermodynamic（热力学的） analysis.” At the end of the summer，he，like the other NASA ASEE fellows working at Marshall，summarized his findings in a formal presentation and detailed paper. It was a valuable moment for Voss because the ASEE program gave him added understanding of  NASA，deepened his desire to fly in space，and intensified his application for astronaut status.

　　It was not an easy process. Voss was actually passed over when he first applied for the astronaut program in 1978. Over the next nine years he reapplied repeatedly，and was finally accepted in 1987. Since then he has participated in three space missions. The 50 year old Army officer，who lives in Houston，is now in training for a four-month mission as a crew member on the International Space Station starting in July 2000.

　Voss says the ASEE program is wonderful for all involved. “It brings in people from the academic world and gives NASA a special property for a particular period of time. It brings some fresh eyes and fresh ideas to NASA，and establishes a link with our colleges and universities，” Voss explains. “There's an exchange of information and an exchange of perspectives that is very important.”

For the academic side，Voss says，the ASEE program also “brings institutions of higher learning more insight into new technology. We give them an opportunity to work on real world problems and take it back to the classroom.”

66. Why was the hydraulic fuel pump seal important for the space shuttle？

A） Because previous seals all failed.

B） Because it was very complex in running the space program.

C） Because great care has to be taken of the hydraulic fuel pump sealing.

D） Because any crack in the seals would cause disastrous results for the astronauts.

67.The great significance of Voss's findings lies in_________ .

A） strengthening his determination to join in space flights

B） furthering his understanding of NASA

C） consolidating his astronaut status in NASA programs

D） Both A and B

68. How many flights will Voss have finished if his four-month mission starting in July 2000 ends up successfully？

A） Three  B） Two   C） Four     D） Five

69. Which of the following is NOT TRUE according to what Voss said on the ASEE program？

A） Fresh members from the academic world participate in the program.

B） The program brings new outlooks to NASA space programs.

C） It is important for the space scientists to exchange information and perspectives.

D） American colleges and universities are a special property of NASA.

70. What does Voss want to stress in the last paragraph？

A） The technological significance of the program.

B） The educational significance of the program.

C） The philosophical significance of the program.

D） The historical significance of the program.

焦油加工的主要任务是获得酚、萘、蒽等纯产品和（）等粗产品。