29岁女性．人工流产术中突感胸闷、头晕、恶心。查体：面色苍白、大汗淋漓，血压70/50mmHg。脉搏50次/分。此时应首先给予
A．输血补液
B．阿拉明静脉滴注
C．苯巴比妥钠肌注
D．阿托品静脉注射
E．迅速消除官腔内容物
参考答案：D
解析：
该患者初步诊断为：人工流产综合反应：其是指受术者在人工流产术中或手术结束时出现心动过缓、心率紊乱、血压下降、面色苍白、出汗、头晕、胸闷，甚至发生昏厥和抽搐原因：宫颈和子宫遭受机械性刺激引起迷走神经兴奋所致，与孕妇精神紧张，不能耐受宫颈扩张、牵拉和过高的负压有关。处理：精神安慰；操作轻柔；负压适当；阿托品0.5-1mg静脉注射。故选D
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| Henry was not 1 at math. Even when the teacher explained something a second time, he still couldn't 2 it. "Never mind. I'll sit 3 the boy who's the best at 4 , " Henry thought, "and 5 his answers." The day of the exam 6 , and Henry sat next to Allan, 7 was 8 at the top of the class in math. Henry copied Allan's answers 9 his own exam paper. At the end of the exam, the teacher said, "Well, boys and girls, I've decided to give a red 10 to the student who got the 11 grade. It's 12 for me to decide who I'll give the star to, however, 13 two students, Henry and Allan, got the 14 grade." After a moment she went on, " 15 I've decided to give the star to 16 this time." Henry was 17 when he heard this. He stood 18 and said, "But I got the same grade as Allan, madam." "That's 19 ." The teacher said. "However, Allan's answer to Question 6 was 'I don't know.', but 20 was 'Nor do I.'" | ||||
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的匀加速运动，上升了h高度，这一过程中bc间电阻R产生的焦耳热为Q，g为重力加速度，不计导轨电阻及感应电流间的相互作用。求： 