问题 单项选择题

一男性患者,20岁,3年来发生多次骨折,并伴有关节疼痛,肝、肾功能正常,超声检查见左侧叶甲状腺下极背侧有一1.0cm×1.5cm的低回声结节,包膜完整,血供丰富,其最可能是

A.甲状旁腺增生
B.甲状旁腺腺瘤
C.甲状旁腺癌
D.低钙血症
E.以上都不是

答案

参考答案:B

解析: 甲状旁腺腺瘤的声像图特征:甲状腺后缘可见单发圆形、椭圆形、长方形、三角形等低回声区,均质,包膜薄而完整,内部出现无回声区则为合并出血、坏死或囊变所致,CDFI示腺瘤前缘和周边可见丰富的血流环绕并进入瘤体内。80%甲状旁腺功能亢进由甲状旁腺腺瘤引起。进而引起血钙、磷代谢障碍。常见的临床表现:骨关节痛,骨质疏松,多处骨折,反复肾结石,但肾功能往往正常,没有尿毒症。

阅读理解

Rio de Janeiro(里约热内卢) will host the 2016 Olympic Games. The International Olympic Committee announced(宣布) it on October 2,2009.Rio de Janeiro beat Chicago, Tokyo and Madrid to win the bid(中标).It will be the first South American city to host the Olympics. The city will also host the 2014 World Cup. Rio de Janeiro is the second largest city in Brazil.

*Population: 6 million

*Language: Portuguese

* Rio de Janeiro has the world’s largest urban forest(城市森林),Which is made up of many kinds of green plants.

*Every year Rio de Janeiro holds a carnival(狂欢节). It is like a  big party. People dress up, dance samba and have fun. It usually lasts for a week. More than two million tourists come to Rio de- Janeiro every year. About half a million people visit the city for the carnival each year.

小题1:Rio de Janeiro beat the other      cities to win the bid For the 2016 Olympic Games.

A.five

B.four

C.three

D.two小题2:If you have a visit to Rio de Janeiro, you can see a large Number of      in the city.

A.animals

B.trees

C.lakes

D.players小题3:Which of the following is TRUE?

A.We can have fun in the carnival for nine days.

B.The carnival in Rio de Janeiro is held every four years.

C.Both people in Rio de Janeiro and tourists can take party in the carnival.

D.About one million people visit Rio de Janeiro for the carnival each year.小题4:We can see the passage in a     .

A.storybook

B.tour book

C.geography book

D.science book

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