最常引起凶险型疟疾的疟原虫是（）。

[问答题]Directions:In this section, there is one passage followed by 5 questions. Read the passage carefully, then answer the questions in as few words as possible (not more than 10 words). Remember to write the answers on the Answer Sheet.　　Questions 1-5 are based on the following passage.　　Many people today are worried about bird flu. They are afraid that it will pass from birds to humans and that thousands of people will die in a pandemic. In 1918 a flu virus killed about 50 million people around the world. The virus was called Spanish influenza (or Spanish flu, for short) because Spanish newspapers first described the disease. Now, after nine years of work, scientists in an American laboratory in Atlanta, Georgia, have produced a copy of the Spanish flu virus. They are also going to publish the genetic sequence of the virus on the Internet and some experts are afraid that other laboratories could copy the virus.　　Scientists have copied the virus because they want to understand why the 1918 Spanish flu pandemic killed so many people. In a report in the journal Science, Dr. Jeffery Taubenberger and a team of scientists in the USA show that the copied virus is extremely powerful. The scientists injected the virus into mice and the mice began to lose weight very quickly. They lost 13% of their weight in two days and all of the mice died within six days.　　“I didn’t expect it to be as lethal as it was,”Dr. Terrence Tumpey, one of the scientists in the team, told the journal Nature. In another experiment, they injected more mice with a normal type of flu. The mice lost weight at first but then they got better and did not die. The experiments showed that the mice with the Spanish flu virus had 39,000 times more flu virus in their bodies than the second group of mice.　　The scientists who copied the virus say their work has already provided important information about the virus and helps to explain why it is so lethal. But other experts are worried that the virus could escape from the laboratory. “Some people will think that they have really created a biological weapon,” said Professor Ronald Atlas of the University of Louisville in Kentucky. “I am even more worried now than I was before about the possibility of a flu pandemic. The 1918 flu pandemic started with bird flu and that might happen again today with Asian bird flu.”　　Some scientists are worried about the publication of the genetic sequence on the Internet. They are afraid that biologists could copy the virus using the information on the Internet. This could be very dangerous.　　It took a long time to copy the virus. Scientists used material taken from the lungs of people who died from the flu virus in 1918. In a second report in Nature, Taubenberger and his colleagues analyzed the genetic make-up of the virus. They were surprised to find that it was completely different from all the normal human flu viruses. This probably means that Spanish flu jumped from birds to humans and did not mix with a human virus first. This is very worrying for scientists because in the past everyone believed that a pandemic was only possible if a bird flu virus mixed with a human flu virus.　　Taubenberger says it is very important to know what changes in the virus caused the 1918 Spanish flu virus. This will help scientists to work out which viruses might cause a pandemic. The H5N1 bird flu in Asia is already changing and it could infect humans, he said.　　Viruses have escaped from high-security labs before. The SARS virus escaped at least twice, once in Taiwan and once in Singapore. But some scientists believe a pandemic will not happen even if the virus escapes, because most people are naturally immune and there are now a lot of drugs which protect people from flu.　　Questions:　　1．When was the Spanish flu pandemic?　　2．How many people died in the Spanish flu pandemic?　　3．Where did the scientists produce a copy of the Spanish flu virus?　　4．How quickly did the laboratory mice die?　　5．What is H5N1?

[单选题]皇甫谧著有（）

[单选题]下列哪种检验无需对系泊设备作全面性检视？（）

[多选题]物流企业没有铁路自备车辆，而是与铁路承运人签订货物运输合同，来完成其物流服务。此时，物流企业扮演（）角色。

[判断题]法定继承中的同一制是指继承统一适用物之所在地法。

[多选题]电话银行公共客户功能包括（）。

[单选题]患者，男性，62岁，乙型肝炎病史10年，近日出现呕血、柏油样便，继之神志恍惚来诊。检查：Bp80/50mmHg，巩膜黄染，言语不清，定向力丧失，计算能力下降，幻觉出现，睡眠时间倒错，有扑翼震颤，肌张力增高，脑电图异常，HB40g/L，血pH7.48，血清钾2.8mmol/L，血氨升高。如患者出现狂躁不安可给予（）。

[多选题]期货交易所履行的职责包括（  ）。

[单选题]授权是一个过程，这一过程发生在（）。

[单选题]在设备安全运行的情况下，能够选气开阀的是（）

[多选题]凶险型疟疾最常见的症状是（）

[填空题]凶险型疟疾多由（）引起，且以（）型最常见。

[单选题]最常引起凶险型疟疾的疟原虫是（）。

[单选题]引起凶险型疟疾最常见的疟原虫是（）.

[单选题]以下疟疾最凶险的是：（）

[单选题]下适用于凶险疟疾的抢救的药物是（）

[单选题]引起疟疾性肾病的最常见虫种是（）.

[填空题]在我国最常见的疟疾类型是（）

[单选题]疟疾（　　）。

[单选题]疟疾（　　）。