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【单选题】
Which of the following statements is true according to Passage A? A. B. C. Studying the humanities makes us familiar with the language of emotion and the creative process . D. Studying the humanities provides us with very limited possibilities .A.
A college education is more and more seen as a means for human betterment rather than economic betterment.
B.
Studying the humanities improves our ability to listen and speak.
C.
Studying the humanities makes us familiar with the language of emotion and the creative process .
D.
Studying the humanities provides us with very limited possibilities .
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【简答题】烷烃脱氢和断链难易的规律：同碳原子数的烷烃，断链比脱氢（）；烷烃的相对稳定性随碳链的增长降低。
【简答题】微型无人机,是指空机质量小于等于 千克的无人机。
【多选题】烷烃脱氢和断链难易的规律有( )。 A 、 B、 C 、 D、
A.
同碳原子数烷烃，断链比脱氢容易
B.
烷烃的相对稳定性随碳链的增长降低
C.
叔氢最易脱去
D.
带支链的烃较直链烃容易断裂
【单选题】烷烃脱氢和断链难易的规律:同碳原子数的烷烃,断链比脱氢( );烷烃的相对稳定性随碳链的增长( ) 。
A.
容易 降低
B.
容易 增大
C.
困难 增大
D.
困难 降低
【单选题】烷烃脱氢和断链难易的规律：同碳原子数的烷烃，断链比脱氢（ ）；烷烃的相对稳定性随碳链的增长（ ）。
A.
容易 降低
B.
容易 增大
C.
困难 降低
D.
困难 降低
参考解析：
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