【多选题】固气界面吸附的五类吸附等温线中,可能是多层吸附的是
【多选题】Which statements below correctly describe the structure of standard short essays in college English?
A.
It provides a thesis statement to present the main point of the essay.
B.
It has a one-paragraph introduction and a one-paragraph conclusion.
C.
It contains two to four body paragraphs.
D.
It has exactly five paragraphs in no more than 500 words.
【多选题】固气界面吸附的五类吸附等温线中,吸附质与吸附剂作用弱的是
【简答题】线性色谱的吸附等温线是直线,非线性色谱的吸附等温线的形状常见的有:()、()、()、()、()。从吸附等温线的形状可以预见色谱曲线的形状,一般凸形的吸附等温线代表色谱图是()的,凹形吸附等温线代表的色谱图是()形状、S形的色谱图是()的。