人们的说话声音必须数字化之后才能由计算机存储和处理。假设语音信号数字化时取样频率为16kHz，量化精度为16位，数据压缩比为2，那么一分钟数字语音的数据量是（）。

A.960kB

B.480kB

C.120kB

D.60kB

--- Shall we walk around the park or go for a bike ride?

--- _________. They are both good activities to me .

A．Yes, I like them very much

B．It makes no difference to me

C．That’s all right

D．I’d prefer a bike ride