对于按次计费的WAP浏览产品，ISMP需要支持（），并同步给WAPGW。
A.计费URL
B.浏览URL
C.确认URL
D.跳转URL
参考答案：A, C
Liu Wei _____ from home for two years, and she misses her family very much. [ ]
A. left
B. has left
C. was away
D. has been away
电视评论所包含的几层意思：
