调拌超硬人造石的粉水比例是 （）

A.100g：15～19ml

B.100g：20～25ml

C.100g：26～30ml

D.100g：31～35ml

E.100g：36～40ml

There is            wrong with this computer. It doesn’t work well.

A．something

B．anything

C．everything

D．nothing