问题
单项选择题
As computers evolve, they have become Smaller and smaller, while speed and (66) have increased tremendously.
A．quantity
B．capacity
C．available
D．quality
答案
参考答案：B
解析： 译文：随着计算机的升级换代，其尺寸越来越小，而速度与性能则有了极大的提高。