GSM系统中移动台的跳频速率是().
A.每比特一跳
B.每比特符号一跳
C.每个时隙一跳
D.每个TDMA帧一跳
参考答案:D
We can do the work better with ________ people and _______ money.
A.less, fewer
B.fewer, less
C.least; fewest
D.fewest; littlest
下列选项中属于普通年金的是()。
A.永续年金
B.预付年金
C.每期期末等额支付的年金
D.每期期初等额支付的年金