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【多选题】
如何解决分布式单机数据采集系统数据不能同时传入处理器的问题?A.
采用总线及三态A/D
B.
在A/D与计算机间加FIFO缓冲器
C.
在A/D与计算机间加双端口RAM
D.
采用DMA高速采集
E.
在A/D与计算机间加模拟中继
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举一反三
【单选题】Over thirty coal miners were reported _________ in that shocking accident.
A.
to be killed
B.
to have been killed
C.
having been killed
D.
being killed
【单选题】The two coal miners, _____ in the mine for as long as three days, were eventually rescued and sent to hospital immediately. [ ]
A.
to trap
B.
trapping
C.
trapped
D.
having trapped
【简答题】The speaker urged the coal-miners to ____________________(维护自己的权利), no matter how difficult it would be.
【单选题】When the earthquake, a destructive natural disaster, happened, ninety-nine coal miners were trapped in the coal mine _____the ruins, waiting _____. [ ]
A.
in; to be rescued
B.
under; for being rescued
C.
in; to rescue
D.
under; to be rescued
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