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["选择题","医疗",0,"构成蛋白质结构的基本单位是( )。",1,null,"氨基酸","核苷酸","脂肪酸","磷酸","硫酸"]
["选择题","医疗",0,"内环境稳态是指( )。",5,null,"细胞内液理化性质保持不变","细胞外液理化性质保持不变","细胞内液的化学成分相对恒定","细胞外液的化学成分恒定不变","细胞外液的理化性质相对恒定"]
["选择题","医疗",0,"第一心音标志着( )。",5,null,"心室收缩结束","心室舒张结束","心室舒张开始","心室舒张中期","心室收缩开始"]
["选择题","医疗",0,"胆囊三角的边界( )。",4,null,"肝左管、肝右管、肝的脏面","肝左动脉、肝右动脉、肝的脏面","胆囊管、肝固有动脉、肝的脏面","胆囊管、肝总管、肝的脏面","门静脉、下腔静脉与肝脏面"]
["选择题","医疗",0,"大量腹水时呼吸的主要形式为( )。\n",3,null,"叹息式呼吸","潮式呼吸","胸式呼吸","腹式呼吸","间停呼吸"]
["选择题","医疗",0,"O2运输的主要形式为( )。",5,null,"磷酸二氢盐","碳酸氢盐","氨基甲酸血红蛋白","还原性血红蛋白","氧合血红蛋白"]
["选择题","医疗",0,"关于兴奋性突触传递的叙述，哪项是错误的( )。",3,null,"突触前轴突末梢去极化","Ca2+进入突触前膜内","突触前膜释放递质是以102个分子为单位","突触后膜对Na+、K+，特别是对Na+的通透性增高","突触后膜去极化达阈电位时，突触后神经元发放冲动"]
["选择题","医疗",0,"膈的裂孔( )。",3,null,"中心腱内有腔静脉孔，约平第10胸椎","食管裂孔位于主动脉裂孔的右前方","腔静脉孔有下腔静脉通过","食管裂孔有食管和胸导管通过","主动脉孔内有主动脉和胸导管通过"]
["选择题","医疗",0,"药物产生副作用的剂量是 ( )。",5,null,"中毒量","LD50 ","无效剂量","极量","治疗剂量"]
["选择题","医疗",0,"人的呼吸系统包括呼吸道和(  )",3,null,"心","肝","肺"," 脾"]
["选择题","医疗",0,"呼吸系统的功能主要是(  )",1,null,"进行气体交换","进行水液代谢","呼出氧气，吸入二氧化碳","进行血液循环"]
["选择题","医疗",0,"气管在4、5 胸椎处分成(  )",2,null,"上下主支气管","左右主支气管","前后主支气管","大小主支气管"]
["选择题","医疗",0,"喉不仅是呼吸的通道，也是(  )",3,null,"消化器官","循环通道","发音器官","分泌器官"]
["选择题","医疗",0,"鼻腔附近含有空气的骨腔叫做(  )",2,null,"鼻道","鼻旁窦","鼻甲","鼻前庭"]
["选择题","医疗",0,"两侧声带之间的裂隙称为(  )",4,null,"咽腔","腭腔","前庭裂","声门"]
["选择题","医疗",0,"气管软骨，具有弹性，使管腔保持开放，这种作用主要表现为(  )",3,null,"呼吸作用","弹性作用","支架作用","固定作用"]
["选择题","医疗",0,"支气管、血管、淋巴管、神经出入于肺的地方称为(  )",2,null,"纵隔","肺门","肺尖","肺底"]
["选择题","医疗",0,"在组织学上，肺内支气管的各级分支及其终端的大量肺泡又称为(  )",2,null,"肺间质","肺实质","两者都对","两者都不对"]
["选择题","医疗",0,"肺表面具有活性物质，可以保持肺泡表面张力，保证肺泡结构稳定性，主要由(  )",4,null,"肺间质细胞分泌","巨噬细胞分泌","Ⅰ型肺泡细胞分泌","Ⅱ型肺泡细胞分泌"]
["选择题","医疗",0,"亚慢性毒性试验中一般化验指标有（  ）。",1,null,"血象、肝肾功能","病理学检查","灵敏指标的检查","特异指标的检查","特异基因的测试"]
["选择题","医疗",0,"接触化合物的途径不同，其毒性大小的顺序是（  ）。",5,null,"静脉注射＞经呼吸道","静脉注射＞腹腔注射","腹腔注射＞经口","经口＞经皮","以上都是"]
["选择题","医疗",0,"目前常用的化学物质有（ ）。",5,null,"500万种","300万种","100万种","10万种","6~7万种"]
["选择题","医疗",0,"急性，亚慢性，慢性毒性试验分别选择动物年龄为（  ）。",1,null,"初成年，性刚成熟，初断乳","初断乳，性刚成熟，初成年","初断乳，初成年，性刚成熟","初成年，初断乳，性刚成熟","性刚成熟，初断乳，初成年"]
["选择题","医疗",0,"急性经口染毒，为了准确地将受试物染入消化道中，多采用（  ）。",1,null,"灌胃","喂饲","吞咽胶囊","鼻饲","饮水"]
["选择题","医疗",0,"最小有作用剂量是（ ）。",5,null,"一种化合物按一定方式与人接触，出现了亚临床症状的最小剂量","一种化合物按一定方式与人接触造成显微镜下可观察到的损伤的最小剂量","一种化合物按一定方式与人接触引起免疫功能减低的最小剂量","DNA大段损伤的最小剂量","一种化合物按一定时间内，按一定方式与机体接触，使某项指标开始出现异常变化的最低剂量"]
["选择题","医疗",0,"亚慢性毒性试验对动物的要求是（   ）。",2,null,"成年动物","大鼠100g左右，小鼠15g左右","大、小鼠，狗，家兔均可用","必须为啮齿类或非啮齿类动物","仅使用单一性别"]
["选择题","医疗",0,"碱基转换的后果是出现（   ）。",5,null,"同义密码","错义密码","终止密码","氨基酸改变","以上都对"]
["选择题","医疗",0,"苯环上的一个氢被烷基取代，其毒性发生改变（   ）。",1,null,"苯对造血功能主要是抑制作用，而甲苯为麻醉作用","苯主要从呼吸道排泄，对呼吸系统有毒性作用，而甲苯没有","苯中毒产生过量的儿茶酚胺刺激心肌细胞发生心室颤动，而甲苯没有","甲苯的肝脏中氧化，对肝有损害作用，而甲苯没有","苯为致癌物，甲苯为工业毒物"]
["选择题","医疗",0,"化学结构与毒效应（   ）。",4,null,"化合物的化学活性决定理化决定","理化性质决定化合物的生物活性","化合物的生物活性决定该化合物的化学活性","化合物的化学结构决定其化学活性及理化性质","化学活性和理化性质影响化学结构"]