【判断题】聚合物是由相对分子质量不等的同系物组成的混合物,存在多分散性。
【单选题】Which of the following statements do you think is not correct as far as English essay is concerned?
A.
The text pattern produced by native English speakers is deductive & linear.
B.
The text usually contains three parts: theme, support, and conclusion.
C.
The English text is syntactic in development pattern, separating the whole thinking to separated parts.
D.
The article comes straight to the central idea and then develops the central idea in many perspectives.
【判断题】污水中的氮、磷等营养物质排到水体,将引起水体富营养化。( )
【多选题】下列导致疾病的因素中有哪些属于非遗传因素?
【单选题】Which of the following works is generally regarded as the best model of satire, not only of the 18th century but also in the whole English literary history?
B.
The History of Tom Jones
【简答题】污水中 的 、 等营养物质排到水体,将引起水体富营养化。(填汉字)
【多选题】关于缩聚产物的分子量分布,下列说法正确的有
C.
形成x-聚体的几率等于聚合产物混合体系中x-聚体的质量分数
D.
根据数量分布函数可以求出任何反应阶段、任何聚体在不同反应程度时的理论分子数量
【简答题】You have been told to write an essay on ‘Malaria (疟疾) – c an it be controlled?’ You decide to make notes on the following article from a magazine called Medical Report (Volume 34 1998, pp. 78–86). The...