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There have been rumors. There’s been gossip. All Hollywood is shocked to learn that Calista Flockhart, star of Fox’s hit TV show Ally McBeal, is so thin. And we in the media are falling all over ourselves trying to figure out whether Flockhart has an eating disorder, especially now that she has denied it. Well, I’m not playing the game. If the entertainment industry really cared about sending the wrong message on body image, it wouldn’t need so many slender celebrities in the first place.But the fact remains that 2 million Americans—most of them women and girls—do suffer from eating disorders. In the most extreme cases they literally starve themselves to death. And those who survive are at a greater risk of developing brittle bones, life-threatening infections, kidney damage and heart problems. Fortunately, doctors have learned a lot over the past decade about what causes eating disorders and how to treat them.The numbers are shocking. Approximately 1 in 150 teenage girls in the U. S. falls victim to anorexia nervosa, broadly defined as the refusal to eat enough to maintain even a minimal body weight. Not so clear is how many more suffer from bulimia, in which they binge on food, eating perhaps two or three days’ worth of meals in 30 minutes, then remove the excess by taking medicine to move the bowels or inducing vomiting. Nor does age necessarily protect you. Anorexia has been diagnosed in girls as young as eight. Most deaths from the condition occur in women over 45.Doctors used to think eating disorders were purely psychological. Now they realize there’s some problematic biology as well. In a study published in the Archives of General Psychiatry recently, researchers found abnormal levels of serotonin, a neurotransmitter in the brain, in women who had been free of bulimia for at least a year. That may help explain why drugs have allowed a lot of people to stop swallowing in large doses of food. Unfortunately, the pills don’t work as well for denial of food. Nor do they offer a simple one-step cure. Health-care workers must re-educate their patients in how to eat and think about food.How can you tell if someone you love has an eating disorder "Bulimies will often leave evidence around as if they want to get caught. " Says Tamara Pryor, director of an eating-disorders clinic at the University of Kansas in Wichita. Anorexics, by contrast, are more likely to go through long periods of denial. Bulimia is found to be ().

A. related to the level of serotonin
B. psychological rather than biological
C. identical with anorexia nervosa in the cure
D. a leading cause of death among middle-aged women

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经行腹痛,属血瘀者多见( )

A. 胀重于痛
B. 痛重于胀
C. 胀、痛并重
D. 痛
E. 胀

男性,60岁,进餐后上腹部轻微疼痛半年,钡餐透视发现胃窦部有一1.5cm大小龛影,局部胃壁僵硬。B超检查示:肝内有可疑低回声区,约1.5cm。化验检查血红蛋白9g/dl,白细胞5×109/L,A/G为3.2/ 2.0。 当上述诊断方法均不能进行时,应考虑

A. 观察病情变化
B. 手术探查
C. 进行放疗
D. 进行化疗
E. 中西医结合治疗

二尖瓣狭窄,麻醉诱导前突发呼吸困难,发绀,咳嗽,颈静脉怒张,血压95/85mmHg,脉搏120次/分,临床诊断为

A. 感染性休克
B. 神经源性休克
C. 心源性休克
D. 损伤性休克
E. 失血性休克

[背景资料] 某城市道路工程,项目经理部技术负责人主持编写了项目质量计划,该质量计划体现了质量管理人员的过程控制,在质量计划的实施过程中,项目经理定期组织项目技术负责人验证质量计划的实施效果,对项目质量控制中存在的问题和隐患提出解决措施。 工程施工后,该项目内部质量审核员按编制施工资料的要求收集、整理质量记录,项目经理组织有关专业技术人员按最终检验和试验的规定,根据合同要求进行全面验证。 工程复工后,项目经理部编制了撤场计划。 [问题] 指出背景材料中的不妥之处,并改正。

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