[单项选择]The author implies that ______. A. The guild system was more efficient B. The domestic system was capitalistic C. The technical advances stimulated the guild system D. The domestic system was not as efficient as the guild system
参考答案:B 答案解析:文中提示:Notwithstanding the petty scale of production,the organization was basically capitalistic.尽管生产规
第36题: [单项选择]采用泡沬灭火系统保护酒精储罐应选用() A. 水成膜泡沬液 B. 氟蛋白泡沫液 C. 抗溶泡沫液 D. 蛋白泡沬液 参考答案:C 答案解析:
水溶性甲、乙、丙类液体和其他对普通泡沫有破坏作用的甲、乙、丙类液体,以及用一套系统同时保护水溶性和非水溶性甲、乙、丙类液体的,必须选用抗溶泡沫液。