Judging from the context, "cafe society"(Paragraph 2) refers to
A. a society that runs a cafe.
B. a society that cooks good coffee.
C. media people who regularly visit small informal restaurants.
D. a group of people who have the same love of drinking coffee.
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班级管理应该以学生为核心,建立以学生为本的班级管理机制。()
A. 正确
B. 错误
一氧化碳的燃烧反应式是: 2CO+O2+3.76N22CO2+3.76N2 设P0=0.1MPa,T0=27℃,T=2411K,则一氧化碳与空气混合物的最大爆炸压力是()MPa。
A. 0.43
B. 0.69
C. 0.75
D. 0.81
实施检验的海运出口危险货物小型容器是指:充灌有易燃气体的气体充灌容器,容量不超过()时,工作压力大于的气体喷雾器及其他充灌有气体的容器。()
A. 1 000cm3,1 000Kpa
B. 100cm3,0.1MPa
C. 1 000cm3,100Kpa
D. 1 000cm3,0.1Mpa