某合资企业欲就一笔抵押贷款向银行申请展期，则其应向银行提交的法定申请文件有（）。 A

The U. S. is ____________ of Canada. [ ]

A. north

B. east

C. south

If you’re looking for a new pet, don’t even think about Komodo dragons, which are the world’s largest lizards and can grow to be 10 feet long and weigh more than 300 pounds. Komodo dragons run fast and eat almost any kind of meat, including dead or live animals, other Komodo dragons and people. “ These things are powerful killing machines,” says Bryan Fry, a biologist.

If those reasons aren’t good enough, consider the bite of a Komodo dragon. According to a new study, it may kill prey like snakes by injecting venom. This chemical, according to Fry and his team of scientists at the University of Melbourne in Australia, can cause shock in the unlucky victim. A person or animal goes into shock when the body cannot offer enough blood to the organs to keep functioning. As a result, the body starts to shut down.

Scientists have only recently begun to understand why a Komodo dragon is so deadly. Some people used to believe that a Komodo dragon’s bite contained bacteria from the mouth that would cause a severe infection in the victim’s blood. The infection would finally kill the animal. Fry says that after being bitten by a Komodo dragon, animals usually die quickly.

After more studies, Fry and his team found that the Komodo dragon venom contained some of the same ingredients as snake venom. These ingredients thin the bolld and cause blood vessels to become larger. To test the venom, the scientists injected rats with it and observed that the rats became still.

Fry’s work show that Komodo dragons kill their prey with venom, and not by bacteria—and gives us another reason why we should avoid coming across them. That is easy to do, since they live only on a few islands in the tropical country of Indonesia.

(no more than 10 words)

小题1:The underlined word “ venom” in Paragraph 2 probably means _________________.

小题2:Why does a victim get into shock after being injected?

小题3:According to Fry and his team, how do the ingredients in Komodo dragons’ venom affect their victims?

小题4:“If you’re looking for a new pet, don’t even think about Komodo dragons.” What does the author mean by saying that?

患者，女，3岁，反复出现心功能不全症状，行心导管检查发现左肺动脉血氧饱和度明显升高，其最可能的诊断为（）

A.肺动脉狭窄

B.房间隔缺损

C.动脉导管未闭

D.室间隔缺损

E.右室双腔心

在计算机局域网络中，常用的传输介质主要有（）。

A.绞线

B.同轴电缆

C.光纤

D.电话线

大豆胞囊线虫病的主要症状是什么？