--Didyoufindthesmallvillageyesterday?--Yes,withoutanydifficulty,forithas______changedoveryears.
- Ahardly
- Bgreatly
- Cclearly
- Dnearly
--Didyoufindthesmallvillageyesterday?--Yes,withoutanydifficulty,forithas______changedoveryears.
1、若一阶方程y'=f(x,y)中,f(x,y)=u(x)v(y),则它是()。
若一阶方程y'=f(x,y)中,f(x,y)=u(x)v(y),则它是()。AA.线性方程BB.齐次方程CC.变量可分离方程DD.恰当方程
Y480/Y485的价位段()A¥2500~¥4500B¥6500~¥8500C¥4500~¥7500D¥3500~¥5500
3、若任意正整数x和y,定义x y=2x+y,x y= ,则1 (2 3)=(
若任意正整数x和y,定义x y=2x+y,x y= ,则1 (2 3)=( )A10B11C64D81
方程y"y-(y’)2=0的通解为()。ABCD
5、揶揄yã yú
揶揄yã yú
6、若有定义:intx,y,z;语句x=(y=z=3,++y,z+=y);运行后
若有定义:intx,y,z;语句x=(y=z=3,++y,z+=y);运行后x的值为()。A6B7C8D3