问题 单项选择题 B1型题

用于观察性激素水平的首选染色方法是()

A.瑞氏染色

B.吉姆萨染色

C.巴氏染色

D.HE染色

E.瑞特-吉姆萨复合染色

答案

参考答案:C

解析:巴氏染色法既可用于检查雌激素水平,也可用于查找癌细胞。

单项选择题
阅读理解

Jesse Owens was born in Alabama in the USA, in 1913. There were ten children in his family. Jesse was the youngest. He went to school in the city of Cleveland. At school he showed he had a special talent for athletics (田径). He could run fast. He could jump high. He could jump far. Because he was good at athletics, Jesse became a student at Ohio State University.

     In May, 1935 in Michigan, USA, he broke the world record for the long jump. This was his first world record. On the 25th May Jesse did something unusual. In 45 minutes he broke six world records. Some people think that this was the greatest athletics achievement ever.

     In 1936 Jesse went to the Olympic Games in Berlin, Germany. There were only nineteen black athletes in the USA team. He won gold medals in the 100 meters race, the 200 meters race, the long jump and the relay race.

     Jesse was not a professional athlete. This meant that he could not get money for running. Later, he became a professional athlete. To make money he had to appear in strange races. Sometimes he had to race against horses.

     In 1960 somebody broke Jesse's last world record. In 1980 Jesse died.

小题1:Jesse Owens was born in _____in the USA.

A. Alabama    B. Cleveland    C. Ohio    D. Michigan

小题2:Jesse showed he was very good at ______ when he was at school.

A.basketball

B.swimming

C.athletics

D.shooting小题3:Jesse's first world record was for the ______.

A.running

B.relay race

C.high jump

D.long jump小题4:He won ______ gold medals in 1936 in the Olympic Games in Berlin, Germany.

A.two

B.four

C.six

D.eight