脊髓完全缺血多少时间会造成脊髓不可逆损害（）。 A.4min B.10min C.1

将与他人的驰名商标相同或者近似的商标使用在非类似的商品上，且会暗示该商品与驰名商标注册人存在某种关系的，驰名商标的注册人认为自己的权益受到损害的，可以请求法律保护。( )

阅读文章后，从第50至53题所给A、B、C、D四个选项中，选出最佳答案。

For the first 10 years after the Wright brothers' original flight in 1903, flying was only a sport．It was a pastime for daredevils （不怕死的人）．One very determined daredevil was Bessie Coleman．She was the first black woman to fly an airplane．

Coleman, born in Texas in 1892, the tenth of 13 children, dreamed of becoming a pilot．To earn money for flying lessons, she washed other people's laundry．At the age of 19 she took a train to Chicago, where she began to study in a beauty school．For five years she worked in a barbershop, and then she looked for a flying school．There were none in the United States that would teach women, but Coleman heard that there were schools in France that would．So she studied the language and sailed off to France．

When she returned to the United States in 1921, Coleman was the first licensed black woman pilot．Her "aerial acrobatic （航空特技）exhibitions" impressed audiences．She took her airplane through loop-the-loops and flew upside down．She did slow rolls and sharp rolls．Audiences were amazed when she performed a move called "falling leaf．"

Coleman became a famous person．She performed her acrobatic flights all over the country．She also spoke to African-American audiences in schools, churches, and theatres．Fly, she told them．Be a part of the new aviation（航空） industry．Many young African-American men listened to her．Some became honored military pilots during World War II．Many others made their careers in aviation．

On April 29, 1926, Coleman was flying when a tool carelessly left in the airplane hit the control stick．The plane went into a dive and did not recover．The daring 34-year-old pilot was killed．

小题1:Bessie Coleman went to France to ____．

A．work in a barbershop

B．study the language

C．look for a flying school

D．take flying lessons小题2:Which of the following is probably an "aerial acrobatic"?

A．Flying upside down．

B．Speaking to audiences．

C．Getting a pilot's licence．

D．Impressing audiences．小题3:The underlined word "exhibition" in paragraph 3 means _____．

A．a holding back

B．a public show

C．falling leaf

D．loop-the-loops小题4:What would be the best title for the passage?

A．An early daredevil

B．The first flying woman

C．A pioneer in aviation

D．The first licensed black pilot

齿龈红肿出血，口臭，渴喜冷饮，舌红苔黄，脉数，宜诊断为（）

A.肾阴虚证

B.脾阳虚证

C.肝阳上亢证

D.胃火炽盛证

E.脾不统血证

外部监督的主体是公安机关以外的其他机关、组织和公民个人，主要有国家权力机关的监督、行政监察监督、检察监督、行政诉讼监督、社会监督等。 ( )

在烧结生产中开始出现液相的是在（）。

A.干燥带

B.预热带

C.烧结矿带

D.燃烧带