问题
单项选择题 案例分析题
男，42岁，发热、咳嗽、咳痰并活动时气促、面部及手部红斑，红斑逐渐向胸部、腰和膝关节部扩展
初步印象是（）
A.系统性红斑狼疮
B.皮肌炎
C.进行性硬化病
D.贝赫切特（白塞）病
E.血管炎
答案
参考答案：B
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男，42岁，发热、咳嗽、咳痰并活动时气促、面部及手部红斑，红斑逐渐向胸部、腰和膝关节部扩展
初步印象是（）
A.系统性红斑狼疮
B.皮肌炎
C.进行性硬化病
D.贝赫切特（白塞）病
E.血管炎
参考答案：B
Electronic books have changed the way many people read for 15 . Now online textbooks are changing the way some students learn and some teachers teach. More than 16 students go to the public schools in Fairfax County, Virginia, outside Washington. Last year, the school system used digital books in fifteen schools. This school year, middle schools and high schools changed 17 printed to electronic textbooks in their social studies classes. “I mean, it’s just 18 a regular textbook, except it’s got it all online.” says Luke Rosa, a history teacher at Falls Church High School. Peter Noonan, an assistant superintendent(主管) of schools says, “The world’s changing 19 . And the online textbooks can change right along with the events that 20 .” “Digital books also cost 21 than printed textbooks,” he says, “Usually it’s between fifty and seventy dollars 22 a textbook for each student, which adds up to about eight million dollars for all of our students in Fairfax County. In fact, we have bought all of the online textbooks for our students for just under six million dollars.” Social studies teacher Michael Bambara says the e-book he uses in his government class is better than a(an) 23 textbook. It has materials for students 24 different levels of reading skills…
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