甲、乙两队进行排球决赛，现在的情形是甲队只要再赢一局就获冠军，乙队需要再赢两局才

I wonder how long it will be before he_________ at the meeting.

A．turns down

B．turns to

C．turns up

D．turns out

Spread spectrum simply means that data is sent in small pieces Over a number of the (46) frequencies available for use at any time in the specified range. Devices using (47) spread spectrum (DSSS) communicate by (48) each byte of data into several parts and sending them concurrently on different (49) . DSSS uses a lot of the available (50) , about 22 megahertz (MHz) .

A．splitting

B．combining

C．packing

D．compacting

法律赋予合同当事人的一种单方解除合同的权利叫做（　）。

A．行政解除　

B．书面解除

C．法定解除　

D．协商解除

根据国内外经济形势和宏观调控任务的要求，2008年要实行稳健的财政政策和从紧的货币政策。 ( )