【简答题】在简单蒸馏釜内蒸馏1000Kg含C 2 H 5 OH (B)质量分数为60%和H 2 O质量分数为40%的混合液。蒸馏结束时,残液中含C 2 H 5 OH(B)质量分数为5%。试求残液的质量是多少千克?该体系的汽液平衡数据如下:其中x为液相中B的质量分数,y为汽相中B的质量分数。 x frac{1}{y-x} x frac{1}{y-x} 0.025 0.05 0.10 0.15 0.20 0.2...
【简答题】只含碳、氢、氧的有机物,为便于研究其燃烧时,生成物与所需氧气的量的关系,可用通式(C x H y ) m (H 2 O) n 或(C x O y ) m (H 2 O) n 表示它们。(m、n、x、y 均为) 例如:CH 3 OH、C 2 H 5 OH、C 3 H 7 OH等物质可用通式(CH 2 ) m (H 2 O) n 表示,其m分别为1,2, 3,n均为1。它们燃烧时所需的氧气和生成...
【判断题】For Vincent, the state is the main actor of international society, so states should respect each other’s sovereignty and adhere to the principle of intervention.
【单选题】流亡大学的流亡教授发表的学术论文应该用什么语言写成?
【单选题】The principle of sovereignty suggests that states should not meddle in the __________ and decision processes of other states.
【判断题】The Treaty of Paris signed in 1783 acknowledged the independence, freedom and sovereignty of the 13 states.
【判断题】The peace treaty was signed in 1776, in which the independence, freedom and sovereignty of the 13 states were acknowledged.
【单选题】Which philosopher believed that international anarchy could be overcome by creating a federation of states where sovereignty remained intact?
【单选题】Which contains a similar provision guaranteeing the sovereignty of States and their responsibility to maintain law and order, national unity and territorial integrity by all legitimate mean? ( )
A.
Article 2of Additional Protocol II
B.
Article 4 of Additional Protocol II
C.
Article 3 of Additional Protocol II
D.
Article 3 of Additional Protocol I