第三代移动通信业务简称为3G，中国移动3G技术为TD-SCDMA，中国电话3G技术为（），中国联通3G技术为（）。
参考答案：CDMA2000；WCDMA
The road conditions there turned out to be very good, _____ was more than we could expect. [ ]
A. it
B. what
C. which
D. that
