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【简答题】
(1) 方程式 确定变量y为x的函数,求导数 。 (2) 方程式 确定变量y为x的函数,求导数 。 (3) 求由方程 确定的函数y的导数。 (4)求由方程 确定的函数y的导数。
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methods
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ways
【多选题】Washington Irving is often considered as "The Father of American Literature" or "The Father of American Letters", because ______.
A.
he is the first American literary humorist.
B.
he has introduced nonfiction prose as a literary genre.
C.
he is the first American writer to gain international fame.
D.
he is the dominant figure of the Realistic Period in American literature.
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A.
why
B.
that
C.
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D.
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