把一质量为56g的石块,放在盛有40ml水的量筒中,水面上升到如图的位置,求:
(1) 石块的体积。
(1) 由图知,V总=60ml,V石=V总-V水=60ml-40ml=20ml=20cm3。
I thought you would come on time yesterday, but you left me ____ (wait) for nearly half an hour.
(I)设f(x)的导函数为g(x),求g(x)在区间0,l上的最小值;
(II)若f(1)=0,且函数f(x)在区间(0,1)内有零点,证明:﹣1<a<2﹣e.
淘气调查了班级同学最喜欢的电视节目情况。
Sure.
She's in the restaurant.
No,thanks.
I'd like some noodles.