_______ is often the case in nature, the commonest things are the most complicated. A、ThatB、ItC、AsD、What
_______ is often the case in nature, the commonest things are the most complicated.
A、That
B、It
C、As
D、What
相关考题：
You can experience a fast internet connection in the same way as you do in the officeA.moreB.muchC.betterD.most
在MOST数据总线系统中， 把光信号变成电压，然后该电压被发送到MOST收发器。