下列方程变形正确的是( )
A:由3﹣x=﹣2得x=3+2
B:由3x=﹣5得x=﹣35
C:由14y=0得y=4
D:由4+x=6得x=6+4
一物体做匀变速直线运动,某时刻速度的大小为4m/s,1s后速度的大小变为10m/s,在这1s内该物体的( )
See, your computer has broken down again! It doesn't ______ sense to buy the cheapest brand of computer just to save a few dollars.
我们所学的常见的立体图形有____体,____体,____体.