问题 单项选择题

甲状腺恶性肿瘤的超声特点为()

①肿瘤边界不规整呈蟹足样改变,分化程度高的癌瘤边缘整齐,有晕环

②肿瘤边界不规整呈蟹足样改变,分化程度低的癌瘤边缘整齐,有晕环

③肿块呈低回声伴砂粒体钙化,大小1~2mm,后方衰减或无变化

④肿块呈低回声伴钙化斑,后伴声影

⑤CDFI:血供极丰富,肿块内及周边有动脉频谱

⑥CDFI:血供不丰富,肿块内少许星点状血流信号

A.①④⑤

B.②③⑥

C.①③⑤

D.②④⑥

答案

参考答案:C

阅读理解

I am wearing a small red ribbon this morning to remind myself and others around me that today is World AIDS Day.

The red ribbon, an international symbol of AIDS awareness, is gaining increasing public recognition as more Chinese, from top leaders to movie stars, wear it today.

Gone were the days when the topic of HIV/AIDS was a public and media taboo(禁忌). Over the past few years, we have watched, read and heard many stories from doctors, volunteers and public health officials at the forefront of HIV/AIDS prevention and treatment.

Quite a few people with HIV/AIDS have come forward to share their experiences on TV or in the media.

The local and central governments have become more forthcoming (be helpful) with their new prevention and treatment programmes, and financial input. The latter rose from less than 1 million yuan (US$ 121,000) in 1986 to a pledge of 800 million yuan (US$98.8 million) in the year of 2006.

The change from silence to public and media campaigns with official promises has been remarkable, especially since China battled through the SARS crisis.

But have we got a full grip on HIV/AIDS? What do we know about the extent of HIV/AIDS in China?

The figures, ranging from confirmed cases to estimates, remain debated. After all, no more than a year has passed since the policy of free medical tests was made public. Unknown numbers from the high-risk groups: drug addicts and people working in sex- related places as well as farmers who once sold blood could still be reluctant to come forward.

69. What does the red ribbon stand for?

A. AIDS                         B. World AIDS Day

C. AIDS awareness                 D. AIDS prevention and treatment

70. Which of the following is Not true according to the text?

A. The topic of HIV/AIDS was a public and media taboo in the past.

B. The topic of HIV/AIDS is now still a public and media taboo.

C. Now a lot of people with HIV/AIDS have come forward to share their experiences on TV.

D. The writer wears a small red ribbon because today is World AIDS Day.

71. In paragraph 5 “the latter” refers to ____________________.

A. financial input                     B. new prevention programmes

C. new treatment programmes           D. the central governments

72. We can learn from the text that high-risk groups of HIV/AIDS in China include the following EXCEPT __________________.

A. drug addicts                 B. people working in sex-related place

C. farmer who once sold blood    D. people getting close to those affected with HIV/AIDS

单项选择题