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【单选题】
下面哪项不是说课与上课的不同点( )A.
内容不同
B.
教学方案设计不同
C.
对象不同
D.
评价标准不同
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反馈参考答案：
举一反三
【简答题】在298K时，某溶液含MgCl 2 和ZnSO 4 的浓度均为0.002mol·kg -1 ，试用Debye-Htickel极限公式求ZnSO 4 的离子平均活度因子。
【单选题】在 298 K 时, 0.002 mol · kg -1 的 CaCl 2 溶液的平均活度系数 g ±, 1 与 0.002 mol · kg -1 的 CaSO 4 溶液的平均活度系数 g ±, 2 相比较是:
A.
g ± ,1 > g ± ,2
B.
g ± ,1 < g ± ,2
C.
g ± ,1 = g ± ,2
D.
无法比较
【简答题】298 K 时,在 0.002 mol · kg -1 CaCl 2 和 0.002 mol · kg -1 ZnSO 4 混合液中, Zn 2+ 的活度系数为多少 ? 已知 : A = 0.509(mol · kg -1 ) -1/2
【单选题】The author would most likely agree with which of the following descriptions of the conflict between Darwinists and cultural anthropologists over the nature of animal emotions?
A.
The concept of animal emotions suggests that human emotions are based on instinctual biology.
B.
Cultural relativists dispute the notion that animal emotions are innate and not be learned.
C.
Darwinists view the events of the twentieth-century as a triumph of animal instinct over rational human behavior.
D.
Darwinists wish to draw a line between emotional behavior. and culturally acquired behavior.
E.
Cultural relativists support the idea of an animal behavior. dictated by behavioral rules.
【单选题】Jack Kerouac was neither a demon nor a saint but a ______ , notably gentle, deeply conflicted and finally self-destructive person whose dream from childhood was to be a writer.
A.
muse
B.
martyr
C.
cadge
D.
fallible
E.
ascetic
【简答题】MDY({^1999-12-30})，显示结果为______。
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