-_____ was your trip?
-It was very nice.[ ]
A. What
B. Where
C. How
D. When
答案:C
_____ weekdays, he often gets up _____ six o'clock. [ ]
A. On, at
B. At, on
C. On, in
D. At, at
HSDPA引入了下列哪些技术()。
A.自适应调制编码AMC技术
B.混合自动重传HARQ技术
C.快速调度技术
D.16QAM高阶调制技术
E.共享信道技术
F.多载波捆绑技术