p=ρ海水gh=1.0×103kg/m3×10N/kg×7000m=7×107Pa.
答:潜水器下潜到7000m处受到海水的压强为7×107Pa
函数f(x)=2ax+1﹣3(a>0且a≠1)的图象经过的定点坐标是 ____.
He has greatly improved his spoken English by learning CrazyEnglish. And he________a chance to go abroad now.