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【多选题】
以下有关贡献边际的公式正确的是（ ）。A.
收入-变动成本
B.
收入-固定成本
C.
单位贡献边际*销售量
D.
销售收入*贡献边际率
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举一反三
【简答题】肝性脑病一般根据意识障碍的程度神经系统表现和脑电图改变分为____、____、
【单选题】At the end of the passage, the author seems to emphasize _____ in an increasingly high tech world.
A.
the variety of education
B.
the content of education
C.
the need for education
D.
the function of education
【简答题】试比较张爱玲与白先勇在创作风格上的异同。
【单选题】Which of the following can NOT be inferred from the passage?
A.
China developed advanced technology in printing long before any other country in the world.
B.
More people read newspapers in English than in any other languages.
C.
Japan is the country where people read more newspapers.
D.
Newspapers have developed quickly in the U. S. since the beginning of the 18th century.
【简答题】比较白先勇与张爱玲在创作风格上的异同。
【简答题】外耳孔与同侧眼眶下缘的连线是 ,英文缩写是 。
【单选题】According to the passage, which of the following is TRUE?
A.
Modern humans, Neandertals and Denisovans lived completely separated.
B.
Denisovans and modern humans were more closely related.
C.
Modern humans and Neandertals were more closely related.
D.
There were exchanges between Denisovans and modern humans.
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