问题
单项选择题
脾局限性包膜下积血的CT表现中，哪项是错误的（）
A.呈新月形或半月形影，位于脾缘处
B.呈圆形或椭圆形影，位于脾内
C.相邻脾实质受压变平或呈内凹状
D.新鲜血液的CT值略高或相近于脾的密度
E.对比增强扫描脾实质强化而血肿不强化
答案
参考答案：B
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脾局限性包膜下积血的CT表现中，哪项是错误的（）
A.呈新月形或半月形影，位于脾缘处
B.呈圆形或椭圆形影，位于脾内
C.相邻脾实质受压变平或呈内凹状
D.新鲜血液的CT值略高或相近于脾的密度
E.对比增强扫描脾实质强化而血肿不强化
参考答案：B
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| One student took a box of chicken to class.Another carried on a cellphone __1__ and still another whistled loudly every time the __2__ turned his back.Reform school?No. College. More and more, professors say, they are coming across __3__ students in their classrooms.Many of today's young scholars arrive late, leave __4__, talk loud or take care of personal __5__ such as paying bills during class.Why are the students behaving badly?"Because they can, , " said a student of University of North Texas."A lot of the time, , the professors let them get away with it." Some educators say it is time to bring politeness back to their classrooms and even __6__ taking some of the blame for bad behavior.They say that rude students are by no means the majority but that one of them can ruin an entire __7__. People are __8__ when they learn that impolite behavior is becoming more and more common in __9__ education, , says Dr. Gerald Amanda, , a counselor at City College of San Francisco.They __10__ some high school students to misbehave but think those who get to __11__ will behave more politely. Dr. Amanda believes that society in general has become more tolerant of rude behavior and that people in power, , including professors, , no longer __12__ standards for __13__.That leads to a growing imprudence(轻率行为)among some college students."There's a great deal of bad behavior in the world around them, , and young people see it and __14__ disrespect, , "said Dr. Amanda, , __15__ that sometimes students "have no idea that they are being rude." | ||||
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