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{ x | x≤0 }
B:{ x | х≥3 }
C:{ x | x≥0 }
D:{ x | x≠0 }
{ x | x≤0 }
B:{ x | х≥0 }
C:{ x | x≤1 }
D:{ x | х≥1 }
{ x |x<1 }
B:{ x |x>-1 }
C:{ x | x≥1 }
D:{ x | x≤1 }
{x|x≤0}
B:{x|x≥3}
C:{x|x≥0}
D:{x|x ≠0}
x=*pa;
B:x=*(a+1);
C:x=*(pa+1);
D:x=a1];
自变量
B:
函数值
定义域
值域
void f(int x);和void f(double x);
B:void f(int x);和void f(int x,char *s=”example”);
C:void f(int x);和void f(int x,int y);
D:void f(int x);和void f(int x,double y);
2x+y, 2y+x
B、2, 2y
C、2x, 2
D、2x, 2y
">8.2x+y, 2y+x
B、2, 2y
C、2x, 2
D、2x, 2y
float f(x,y)
B:float f(int x;int y)
C:float f(int x,y)
D:float f(int x,int y)
x = y= z= 1
B:x =(y = z + 1)
C:x,y = y,x
D:x += y
A.1,2]
B.2,3]
C:C.3,4]
D:D.4,5]
A, while 1X=1Y domestically in nation B:
选项: A:there will be no trade between the two nations
B:the relative price of X is the same in both nations
C:the relative price of Y is the same in both nations
D:all of the above
Na2SO3
B:CaCl2
C:AgNO3
D:Na2CO3
Z = R + X
B:Z = R - X
C:Z2=R2+X2
D:Z2=R2-X2
nation A has a comparative disadvantage in commodity X.
B:nation B has a comparative disadvantage in commodity Y.
C:nation A has a comparative advantage m commodit
D:nation A has a comparative disadvantage in neither commodity.
y=x
B:y=|x|
C:y=x+1
D:y=2x
y=x+3
B:y=x2+1
C:y=x3
D:y=x3+1
y=cosx+1
B:y=x
C:y=-x
D:y=|x|