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max(int x,int y,int * { *z=x>yx:y; } z=x>yx:y; int max(int x, {int z; return z; } max(int x,int { int z; z=x>yx:y; return (;} int max(int x,int { return x>yx:y;}
Y0运行1S Y0、Y1同时运行 Y1运行1S Y1停止运行1S后,Y0启动
y-y1=k(x-x1) y=5kx+3 y =9k(x-x1) y=4x+b
3y-y1=x-x1 y=3kx+b-2 y-y1=k(x-x1) y=ax -4
-(2yx+2x)+f(y) 2x(y+1) -(2yx+2y)+f(x) 2x(y+1)+c
(-5,y1), (3,y2)均在抛物线y=ax2+bx+c(a≠0)上,点 (x0,y0)是抛物线的顶点,若y1>y2>y0,则x0的取值范围是( ) A.x0>-5 B.x0>-1 C.-5-2
y-y1=k(x-x 1) y=5k x+3 y=9k(x-x 1) y=4x+ b
y-y1=k(x-x1) y=5kx+3 y=9k(x-x1) y=4x+b
y=3kx y=2kx+b y-y 1=k(x-x 1) y=ax+b
a=0 Sy=0 Syx=0 b=1 Syx=Sy
y-y1=k(x-x 1) y=kx+8 y=4kx y=ax+b
都能使Y0或Y1得电 0步中Y0不能长期得电 2步中Y1不能得电 0步错误,2步工作正常
)y1 >y2 ( )y1 =y2 ( )y1 )不能比较