第7题: [单项选择]关于匙形器刮治操作过程不正确的是() A. 放入牙周袋时应使工作端的平面与牙根面平行 B. 到达袋底后与根面间逐渐成45°角,以探查根面牙石 C. 到达袋底后与根面间逐渐成45°角,以刮除袋壁肉芽 D. 然后与根面成80°角,进行刮治 E. 操作完成后,仍回到与根面平行的位置,取出器械 参考答案:C
第15题: [单项选择]患儿,女性,2岁。腹泻2天,大便4~6次/天,稀水样,无呕吐,尿量正常。应选用() A. 口服补液 B. 2:1等张含钠液 C. 1/3张含钠液 D. 1/2张含钠液 E. 静脉营养 参考答案:A 答案解析:口服补液适用于能口服的轻、中度脱水患儿。【该题针对“专业知识-液体疗法、特殊情况下的液体疗法”知识点进行考核】
A. lie went to the public library. B. He bought the book he had been looking for. C. He ran across the street to the library. D. He bought the book merely by chanc 参考答案:A 答案解析:[听力原文] W: Why are you so happy today M: I ran across the long-sought-after book on the subjec