"Are you implying that I have something to do with those attacks?" she asked coldly.
“你在暗指我和那些袭击有关吗?”她冷冷地问道。
Always have something with you to do.
因为那时总会有事可做。
In short, if you own the copyright to something, you have the same rights that you do with anything else and, in some instances, even more.
总之,如果你拥有某物的版权,你就会有处理其它事情的同样权利,在某些实例之中甚至会更多。
So instead you'd have to maybe if you start with wavelength, go over there, and then figure out velocity and do something more like kinetic energy equals 1/2 n b squared to get there.
这时你要先从波长开始,到这,然后算出速度,然后像动能等于1/2nb平方得到这。
So, the point is whenever you have derivatives with something over dt, do not hesitate to cancel the dts This will be actually true as long as both quantities are vanishingly small.
关键在于,只要你推出的式子分母上有dt,不要犹豫,直接约掉,这个式子只在,两遍都是无穷小的情况下成立
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