个人住房贷款的实质是一种()。A．商品买卖关系 B．合作关系 C．融资关系 D．营销

PQY平移机构控制屏线路有哪些特点？

由电阻抗血细胞分析仪间接测定的指标是（）

A.MCV

B.RBC

C.PLT

D.HGB

E.MCHC

“……今天，我们隆重纪念辛亥革命100周年，深切缅怀孙中山先生等辛亥革命先驱的历史功勋，就是要学习和弘扬他们为振兴中华而矢志不渝的崇高精神，激励海内外中华儿女为实现中 * * 伟大复兴而共同奋斗。”胡 * * 的这段讲话告诉我们[ ]

A．要弘扬辛亥革命精神，为实现中 * * 伟大复兴而奋斗

B．辛亥革命精神已经过时

C．弘扬集体主义精神

D．开拓创新精神

     For well over a thousand years，smallpox was a disease that everyone feared．The disease killed much of the native population in South America when the Spanish arrived there in the early sixteenth century．By the end of the eighteenth century，smallpox was responsible for about one in

ten deaths around the world．Those who survived the disease were left with ugly scars on their sjun．

It had long been well known among farmers that people who worked with cows seldom caught smallpox；instead，they often caught a similar but much milder disease called cowpox (牛痘) ．A Bridsh doctor called Jenner was extremely interested in this，and so he studied cowpox He believed that，by vaccinating (给接种疫苗) people with the disease，he could protect them against the much worse disease smallpox．In 1796，he vaccinated a boy with cowpox and，two months later，with smallpox．The boy did not get smallpox．In the next two years，Jenner vaccinated several children in the same way，and none of them got the disease．

News of the success of Jenner’s work soon spread．Vaccination soon became a common method to protect people against other diseases caused by virus，such as rable (狂犬病)，and vaccines (疫苗) were sent across the world to the United States and India．

It took nearly two centuries to achieve Jenner’s dream of getting free of smallpox from the whole world．In 1967，the world Health Organization (WHO) started a great vaccination program，and the last known case of smallpox was recorded in Somalia in 1977．The story of vaccinations does not end there，however．There are many other diseases that kill more and more people every year．Besides，many new diseases are being discovered．The challenge for medical researchers will，therefore，probably continue for several more centuries

小题1:Smallpox was so serious that       by the end of l8th century

A．its death rate was up to ten percent

B．those who caught it were certain to die

C．one in ten people in the world died of smallpox

D．one in ten deaths in the world was caused by smallpox小题2:Edward Jenner discovered that vaccination with cowpox could      

A．make smallpox much milder

B．stop people from getting smallpox

C．protect people against any disease

D．prevent people’s scars after smallpox小题3:Which of the following statements is not true?

A．The first experiment with cowpox was made by a British doctor

B．After 1977 smallpox disappeared around the world according to WHO．

C．Vaccination had existed among ordinary farmers before being discovered

D．Vaccination can be used to protect people in the world against not only smallpox小题4:The author of the passage thinks that      

A．vaccinations bring many new problems

B．vaccinations end the spread of diseases

C．there is a long way to go to fight against diseases

D．there is along way to go to discover new diseases

举例说明加权表决制。