【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
【单选题】Girls flinch back in the competition with boys most probably because
A.
they are short of confidence in themselves.
B.
employers often prefer boys to take technical jobs.
C.
they have poorer performance in technical jobs.
D.
they are willing to leave technical jobs to boys.
【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。
【单选题】Not only (we lost) all our (memory), but we (also) came close to (losing) our lives.