121.5和406MHZEPIRB都具有的工作模式是()模式
A、实时
B、全球覆盖
C、存储转发
D、ARQ
参考答案:A
统计的认识过程是()
A.从定性认识到定量认识,再到定性认识
B.从定量认识到定性认识
C.从定性认识到定量认识,再到定量认识与定性认识相结合
D.从定量认识到定性认识,再到定性认识与定量认识相结合
—Does anybody want an extra ticket to go to the movies?
—Whom would you rather _______ with you, Li Hua or me?
A.to go
B.have go.
C.have to go
D.have gone