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>> 成人高等教育 / 高等数学三：线性代数
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佳题速递：
继电器按照工作原理分类可分为（ ）。A、电磁型继电器B、感应型继电器C、电动型继电器D、整流型继电器E、静态型继电器电力系统继电保护 以下对单核细胞的描述中，哪一项错误: 组织学与胚胎学 15.document.write($wapper.api.getDisplayFormat("对于双射函数:A→B，称:B→A是它的[参考答案：反函数](分值：2)。"));对于双射函数:A→B，称:B→A是它的[参考答案：反函数](分值：2)。showAnswer("lemonysoft_item_key_1339789_40143","","1");得分： 分系统自动批改于2020年12月26日 23点51分 (A)rr(B)rq(C)（rq）(D)pp离散数学 37、In ancient time the most important examinations were spoken, not written. In the schools of ancient Greece and Rome, testing usually consisted of saying poetry aloud or giving speeches.
In the European universities of the Middle Ages, students who were working for advanced degrees had to discuss questions in their field of study with people who had made a special study of the subject. This custom exists today as part of the process of testing candidates for the doctor's degree.
Generally, however, modern examinations are written. The written examination, where all students are tested on the same questions, was probably not known until the nineteenth century. Perhaps it came into existence with the great increase in population and the development of modern industry. A room full of candidates for a state examination, timed exactly by electric clocks and carefully watched over by managers, resembles a group of workers at an automobile factory. Certainly, during examinations teachers and students are expected to act like machines.统考英语阅读理解 抽样误差是指（）。A、系统性代表性误差B、登记性误差C、抽样调查中各种原因引起的全部误差D、偶然性带表性误差应用统计学 关于中性粒细胞下列哪项错误:( ) 组织学与胚胎学
