第11题: [单项选择]法洛四联症患儿喜蹲踞是因为（） A. 心脑供血量增加 B. 缓解漏斗部痉挛 C. 休息，缓解疲劳 D. 腔静脉回心血量增加 E. 增加体循环阻力，减少右向左分流血量 参考答案:E 答案解析:蹲踞时下肢屈曲，使静脉回心血量减少，减轻心脏负荷，同时，下肢动脉受压，循环阻力增大，使右向左分流减少，使缺氧症状暂时得到缓解。【该题针对“实践能力-常见先天性心脏病护理措施”知识点进行考核】
第20题: [单项选择]佛教传入湖南始于（）时期。 A. 唐代 B. 宋代 C. 汉代 D. 两晋 参考答案:D
第21题: [简答题]学生的职责(The Duties of Students) 参考答案:
[参考范文] The Duties of Students
We students are the future constructors of our country. The first thing we ought to know is what is the best way to serve our country. Therefore we should work hard while we are in school. As a student, we must take notice of the teacher’ s lectures. Our teacher’ s knowledge and experience are better than ours. We should strictly obey our teachers and pay close attention to their lectures, Books are good friends of students and rich source of knowledge. If we study diligently and attentively we are on the road to success. Only by arming ourselves with rich knowledge can we be good constructors of our country.
