问题 单项选择题 案例分析题

男性,27岁,3天前搬重物后感腰痛,伴右下肢放射痛,咳嗽、喷嚏时症状加重,不能下床活动,以前无类似发作史。查体发现,腰椎生理弧度消失,活动明显受限,直腿抬高仅达40°,加强试验阳性,右足外侧外踝部皮肤感觉过敏.右跟腔反射减弱,X线平片除腰椎生理弧度消失外;未见其他异常,尿常规正常。

下列措施中哪一项不适宜采用()

A.硬膜外麻醉下推拿

B.手术治疗,椎板开窗减压髓核摘除

C.卧硬板床休息及药物治疗

D.骨盆牵引及理疗

E.封闭治疗(硬膜外注射类固醇药物)

答案

参考答案:B

阅读理解

Instead of hitting the beach, fourteen high school students traded swimming suits for lab coats last summer and turned their attention to scientific experiments.

The High School Research Program offers high school students guidance with researchers in Texas A&M’s College of Agriculture and Life Sciences. Jennifer Funkhouser, academic adviser for the Department of Rangeland Ecology and Management, directs this four-week summer program designed to increase understanding of research and its career potential.

Several considerations go into selecting students, including grades, school involvement and interest in science and agriculture. And many students come from poorer school districts, Funkhouser says, “This is their chance to learn techniques and do experiments they never would have a chance to do in high school.”

Warner Ervin of Houston is interested in animal science and learned how to tell male from female mosquitoes(蚊子).His adviser, Craig Coates, studies the genes of mosquitoes that allow them to fight against malaria and yellow fever. Coates thought this experience would be fun and helpful to the high school students.

The agricultural research at A&M differs from stereotypes. It’s “molecular(分子)science on the cutting edge,” Funkhouser says. The program broadened students’ knowledge. Victor Garcia of Rio Grande City hopes to become a biology teacher and says he learned a lot about chemistry from the program.

At the end of the program, the students presented papers on their research. They’re also paid $600 for their work-another way this program differs from others, which often charge a fee.

Fourteen students got paid to learn that science is fun, that agriculture is a lot more than milking and plowing and that research can open many doors.

小题1:The research program is chiefly designed for  _______.

A.high school advisers from Houston

B.college students majoring in agriculture

C.high school students from different places

D.researchers at the College of Agriculture and Life Sciences小题2:It can be inferred from the text that the students in poorer areas  ___________ .

A.had little chance to go to college

B.could often take part in the program

C.found the program useful to their future

D.showed much interest in their high school experiments小题3:When the program was over, the students  ________.

A.entered that college

B.wrote research reports

C.paid for their research

D.found way to make money小题4:The underlined expression “on the cutting edge” in paragraph 5 means “on the most  ___ position”.

A.important

B.favorable

C.astonishing

D.advanced

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