In sixteenth-century Italy and
eighteenth-century France, waning prosperity and increasing social unrest led
the ruling families to try to preserve their superiority by withdrawing from the
lower and middle classes behind barriers of etiquette. In a prosperous
community, on the other hand, polite society soon absorbs the newly rich, and in
England there has never been any shortage of books on etiquette for leaching
them the manners appropriate to their new way of life. Every code of etiquette has contained three elements; basic moral duties; practical rules which promote efficiency; and artificial, optional graces such as formal compliments to, say, women on their beauty or superiors on their generosity and importance. In the first category are considerations for the weak and respect for age. Amo A. ethics. B. pragmatism. C. efficiency. D. elegance. [单项选择]关于慢性根尖周脓肿,错误的是
A. 又称慢性牙槽脓肿 B. 可由根尖肉芽肿发展而来 C. 镜下可见炎性肉芽组织 D. X线可见边界清楚的透射影 E. 可形成瘘管,长期流脓 [单选题]配变三相负荷不平衡,导致重载相电压偏低,应通过( )改造,均匀分配台区单相负荷。
A.集束导线 B.三相三线制 C.三相四线制 D.单相 [判断题]复杂零件的划线就是立体划线。
[单选题]业主项目部、监理项目部、施工项目部()至少召开一次安全工作例会。
A.每周 B.每月 C.每季度 D.每年 E.略 F.略 [判断题](2945)( )没有车票的人在候车室死亡,由车站通知地方政府负责处理。
A.正确 B.错误 [单项选择]( )是指产业结构由低层次向高层次不断成长的过程。
A. 产业结构演进 B. 产业构成形式 C. 产业发展水平 D. 产业技术力量 [多选题]DC1500V开关柜馈线柜跳闸后,下列可启动自动重合闸的保护动作类型有()。
A.大电流脱口保护动作 B.过电流Imax++保护动作 C.di/dt、ΔI保护动作 D.框架保护动作 [单项选择]患者女,50岁。牙龈增生影响咀嚼1年。检查见全口牙龈肥大增生,覆盖牙面约1/2,结节状。探诊时有出血,个别牙龈增生严重处牙齿有移位。导致该病的主要原因是()
A. 免疫抑制剂环孢素 B. 遗传因素 C. 螺旋体 D. 白细胞大量浸润 E. 血压过高 [判断题]( )液柱压力传递速度大约为300m/s,6000m深的井需20s才能把节流变化的压力传递到立管压力表上。
A.正确 B.错误 [简答题]骨折
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