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【单选题】
将氯化钙与湿物料放在一起时,使物料中水分除去,这是采用( )A.
机械去湿
B.
吸附去湿
C.
供热干燥
D.
无法确定
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反馈参考答案：
举一反三
【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
A.
第Ⅰ类吸附等温线
B.
第Ⅱ类吸附等温线
C.
第Ⅲ类吸附等温线
D.
第Ⅳ类吸附等温线
E.
第Ⅴ类吸附等温线
【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.
【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】A．AGE IS NULL B．NOT(AGE IN NULL) C．AGE=NULL D．AGE IS NOT NULL
【单选题】Not only (we lost) all our (memory), but we (also) came close to (losing) our lives.
A.
we lost
B.
memory
C.
also
D.
losing
【单选题】以下代码输出为 _____ 。 age=22 if age 12 and age 18 and age 35 and age < 50: print('Middle age')
A.
Baby
B.
Adult
C.
Middle age
D.
Teenage
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