《娜娜》、《萌芽》、《小酒店》是()的作品。
A.拉辛
B.莱辛
C.左拉
D.易卜生
参考答案:C
一个苯一甲苯蒸馏系统,已知馏出液量为7082.6Kg/h,回流比R=2,塔顶蒸气汽化潜热为390KJ/Kg,塔顶冷凝器中冷却水的温度为293K,进出口温差控制在5K,计算冷凝器中冷却水的消耗量?(水的比热为C=4.18KJ/Kg.K)
Mark’s Warehouse Clearance Store is having sale with savings of up to 40 percent off on all clothing this weekend () celebration of its 25th anniversary.
A.in
B.at
C.on
D.of