计算机系统由两大部分组成,它们是 ___。
微型计算机的CPU主要由两部分构成, 它们是____。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧