Passage Five Roman soldiers in some places built long rows of signal towers. Whe

Passage FiveRoman soldiers in some places built long rows of signal towers. When they had a message t

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设函数y=1/(1+cosx),则y′=__________。

设函数y=1/(1+cosx),则y′=__________。

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设函数f(x)=lnx,g(x)=e2x+1,则f=______。

设函数f(x)=lnx,g(x)=e2x+1,则f[g(x)]=______。

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Passage Three Shopping for clothes is not the same experience for a man as it is

Passage ThreeShopping for clothes is not the same experience for a man as it is for a woman. A man go

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The word "darted" in paragraph 5 can be best replaced by______.

The word "darted" in paragraph 5 can be best replaced by______.A. walkedB. marchedC. wanderedD. dashe

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