【单选题】How many Earths could fit inside the Sun?
【单选题】The chances of discovering life on Neptune are about a million__________.
【判断题】在液力变矩器中,当涡轮转速最高时,产生的环流也最大
【单选题】It was estimated that the thieves had stolen _____ worth of jewelry from the shop.
【判断题】在液力变矩器中,当涡轮转速最高时,产生的环流也最大
【单选题】对光电效应和康普顿效应而言,以下正确的说法是
A.
两种效应中电子和光子组成的系统都服从动量守恒和能量守恒定律
D.
光电效应是吸收光子的过程,而康普顿效应则是相当于光子和电子的弹性碰撞过程
【判断题】One million bytes can be represented as 1000K bytes.