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答案:
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1.(4) v= x
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2.A、u(x)f(x)v(x)g(x)=d(x)
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3.V 14 . X 15 . V 16 . X 17( )
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4.设 z = f(u, v),u = φ(x, y),v = ψ(x, y),则∂z/∂x = ( )
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5.无向连通图G=,其中V={u,v,w,x,y},E={,,,,},则图G的割点为______
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6.B u u V(4)
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7.x 1(4 rarctan x dx3x 1
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8.X 2. 3. X 4( )
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9.(19)[(x 4)dax;
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10.A.Ⅰ(c v m)=Ⅰc ⅡcB.Ⅱ(c v m)=Ⅰ(v m) Ⅱ(v m)C.Ⅰ(v m)>ⅡcD.Ⅰ(v △v m/x)>Ⅱ(c △c)