已知圆x2+y2 +4x-8y+11=0,经过点P (1,0)作该圆的切线,切点为Q,则线段PQ的长为
A、4A
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名词解释:privateinternationallaw
Thisofferisfirm,subjecttoyourimmediatereply____shouldreachusnotlaterthantheendofthismonth.()
Hedeclined_______moreaboutit.
TheNetherlandsistheonlycountryinEuropewhichpermitseuthanasia,________itisnottechnicallylegalthere.
Pleaseseetoitthatthegoodsweorderedareshippedassoonasthecoveringletterofcredit____you.()