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13800 6200 3000 1500 2100 [单项选择]Joy and sadness are experienced by people in all cultures around the world, but how can we tell when other people are happy or despondent It turns out that the expression of many emotions may be universal. Smiling is apparently a universal sign of friendliness and approval. Baring the teeth in a hostile way, as noted by Charles Darwin in the nineteenth century, may be a universe sign of anger. As the originator of the theory of evolution, Darwin believed that the universal recognition of facial expressions would have survival value. For example, facial expressions could signal the approach of enemies (or friends) in the absence of language.
Most investigators concur that certain facial expressions suggest the same emotions in a people. Moreover, people in diverse cultures recognize the emotions manifested by the facial expressions. In classic research Paul Ekman took photographs of people exhibiting the emotions of anger, disgust, fear, happiness, and sadness. He then asked people A. people might have different expressions for the same emotion B. pleasant feelings often stimulate Duchenne smile C. crow’s feet wrinkles often accompanied the Duchenne smile D. keeping a stiff upper lip was useful for handling stress [单选题]下列各项中，属于局部紧急停车的是（）
A.由外供蒸汽故障引起的紧急停车 B.由电源故障引起的紧急停车 C.由仪表风故障引起的紧急停车 D.由急冷水故障引起的紧急停车 [单选题] 机车信号由绿灯、绿黄灯变为白灯，控制工务机械车运行（）m后停车。
A.700 B.800 C.1000 D.1400 [多项选择]勘察、设计、施工、监理单位将本单位在工程建设过程中形成的文件向( )档案管理机构移交。
A. 本单位 B. 建设单位 C. 地方城建 D. 设计单位 E. 主管部门 [单选题]关于证券投资基金的说法，错误的是（ ）。
A.无须托管，方便灵活 B.集合理财，专业管理 C.组合投资，分散风险 D.利益共享，风险共担 [单选题]在66、110kV带电线路杆塔上工作，作业人员活动范围及其所携带的工具、材料等，与带电导线最小安全距离不准小于（）m。
A.1 B.1.5 C.3 D.4 [单项选择]根据数据的分布形式，有同步和不同步数据的差别，以下数据形式中( )具有这种性质。
A. 划分数据 B. 独立模拟数据 C. 不相容数据 D. 复制数据 [单项选择]饮犯胸肺之痰为
A. 痰脓腥臭 B. 痰稠黄胶结 C. 痰稀薄多沫或痰白而黏 D. 痰少黏稠难出 E. 痰如白沫量多 [判断题]处理瓦斯爆炸事故时,侦察小队如遇堵塞物,应立即进行清理。( )
A.正确 B.错误 我来回答: 提交
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