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【单选题】
设 ,则当 x → 0 时有【 】A.
f ( x ) 是比 x 高阶的无穷小
B.
f ( x ) 是比 x 低阶的无穷小
C.
f ( x ) 与 x 是等价无穷小
D.
f ( x ) 与 x 是同阶但不等价无穷小
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举一反三
【单选题】Why was Silas put to prison in Andorra?
A.
He plummel a man.
B.
He stole a wallet.
C.
He killed his father.
D.
He killed a man.
【单选题】( )3. Practice ____ the piano, and you will play it well.
A.
to play
B.
play
C.
playing
D.
played
【单选题】Susan Lug mentioned all of the following symptoms EXCEPT _______.
A.
going to the bathroom often
B.
high blood pressure
C.
being thirsty a lot
D.
being tired
【简答题】英汉互译。 1. 中国音乐 ____________ 2. 弹古筝 ____________ 3. play the guitar ____________ 4. play the drums ____________
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