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【简答题】
．求下列函数的值域： 小题1: y =－ x 2 ＋ x ， x ∈[1，3 ] 小题2: y = 小题3:
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反馈参考答案：
举一反三
【单选题】According to vessel's structure, the extreme fore end of the vessel is called _____.
A.
stern
B.
fore peak tank
C.
dead end
D.
stem
【单选题】What is Jerry's wife doing these days?
A.
She is painting a picture.
B.
She is learning a foreign language.
C.
She is typing a book.
D.
She is studying cooking.
【单选题】My cousin has made _____ great progress in her spoken English that she can now talk freely with foreigners.
A.
so
B.
too
C.
such
D.
quite
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