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【多选题】
正因为I/O端口独立编制,因此8086CPU访问I/O端口时需要专用的指令,包括( )。A.
MOV
B.
IN
C.
OUT
D.
所有指令均可
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皮皮学刷刷变学霸
举一反三
【简答题】The research effort has __________ on tracing the effects of growing levels of five compounds.
【单选题】Which stage of the product life cycle does rapidly rising sales, very high profit levels, and a growing number of competitors characterize?
A.
growth
B.
maturity
C.
saturation
D.
decline
【单选题】Growing levels of pollution represent a serious health ________ to the local population.
A.
haze
B.
hazard
C.
problem
D.
security
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