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锟斤拷锟斤拷锟斤拷(zh锟斤拷)锟斤拷锟斤拷锟斤拷. 锟紺锟斤拷锟斤拷锟斤拷式锟絩锟斤拷锟侥达拷锟紺锟斤拷锟絵锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷锟斤拷某锟街條锟斤拷. 锟斤拷锟斤拷”锟斤拷锟斤拷锟斤拷“锟紺锟絵锟斤拷锟斤拷锟斤拷锟斤拷太锟斤拷锟姐，锟斤拷锟斤拷锟叫時锟揭傦拷锟斤拷锟斤拷锟斤拷锟矫凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紺锟絵锟斤拷途锟斤拷锟斤拷然锟斤拷锟斤拷”锟紺锟较凤拷“锟組锟叫憋拷锟斤拷锟斤拷

锟斤拷锟斤拷4锟斤拷锟脚縮锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷式一锟斤拷锟絤锟斤拷?sh锟斤拷)姆糯锟斤拷s小锟斤拷锟絖锟斤拷锟紺锟絵目锟斤拷锟斤拷锟斤拷知A

锟斤拷锟斤拷5锟斤拷锟斤拷(sh锟斤拷)锟絎锟絯锟絳锟斤拷

锟斤拷锟斤拷锟紺锟斤拷锟絚锟斤拷然锟斤拷(sh锟斤拷)n锟斤拷锟絇锟侥诧拷锟斤拷式锟絩锟斤拷锟斤拷锟矫旓拷(sh锟斤拷)锟絎锟絯锟絳锟斤拷锟紺之锟斤拷

锟斤拷锟斤拷锟矫旓拷(sh锟斤拷)锟絎锟絯锟絳锟斤拷锟紺锟斤拷锟斤拷锟斤拷式锟斤拷要注锟斤拷刹锟揭伙拷Y論锟斤拷

锟斤拷锟斤拷锟斤拷锟紺锟斤拷锟节讹拷锟斤拷锟絩锟斤拷一锟斤拷锟斤拷玫锟斤拷锟斤拷^锟斤拷锟斤拷锟脚縮锟斤拷锟酵凤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷6锟斤拷锟斤拷锟紺锟斤拷

锟斤拷锟斤拷锟紺锟斤拷锟斤拷锟斤拷式锟絩锟斤拷锟斤拷锟饺硷拷锟絆要锟紺锟斤拷锟斤拷锟斤拷锟絵锟侥凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絣锟斤拷锟斤拷锟斤拷锟斤拷锟絣锟斤拷锟結锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷知锟斤拷锟絰锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺伙拷锟斤拷原锟斤拷锟斤拷锟斤拷锟紺锟斤拷一锟斤拷锟絚锟斤拷锟絵锟侥條锟斤拷锟斤拷锟斤拷锟紺锟斤拷锟侥讹拷锟斤拷锟斤拷锟絁锟侥猴拷锟斤拷锟铰岋拷锟斤拷矛锟杰的結論锟斤拷锟皆达拷锟絝锟斤拷原锟斤拷锟絆锟侥結論锟斤拷锟斤拷锟斤拷锟斤拷锟侥讹拷锟较讹拷原锟斤拷锟絵锟侥結論锟斤拷锟斤拷锟侥凤拷锟斤拷锟絈锟介反锟紺锟斤拷锟斤拷

锟斤拷锟斤拷7锟斤拷锟絈元锟斤拷

锟斤拷锟斤拷锟絈元锟斤拷目锟侥撅拷锟角減锟劫诧拷锟斤拷式锟斤拷變锟斤拷锟侥傦拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷使锟斤拷锟絵锟斤拷锟統锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟介簡锟斤拷锟斤拷锟矫的換元锟斤拷锟斤拷锟角換元锟酵达拷锟斤拷(sh锟斤拷)锟絈元锟斤拷

锟斤拷锟斤拷8锟斤拷锟斤拷锟届法

锟斤拷锟斤拷通锟絕锟斤拷锟届函锟斤拷(sh锟斤拷)锟斤拷锟紻锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟叫★拷锟斤拷锟斤拷锟饺侊拷锟紺锟斤拷锟斤拷锟斤拷式锟斤拷

锟斤拷锟斤拷3锟斤拷锟叫旓拷(sh锟斤拷)锟絎锟斤拷锟角猴拷锟斤拷(sh锟斤拷)锟斤拷平锟斤拷锟斤拷锟斤拷知锟絉锟絚

锟斤拷锟斤拷一锟斤拷锟斤拷锟饺凤拷锟絚

锟斤拷锟斤拷锟斤拷锟饺凤拷锟絚锟斤拷式锟斤拷锟斤拷锟斤拷P1P=λ锟斤拷锟斤拷PP2锟斤拷

锟斤拷锟斤拷锟絆P1锟斤拷P2锟斤拷直锟斤拷锟较的冿拷锟絚锟斤拷P锟斤拷l锟较诧拷同锟斤拷P1锟斤拷P2锟斤拷锟斤拷锟斤拷一锟絚锟斤拷锟絫锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷(sh锟斤拷)λ锟斤拷使锟斤拷锟斤拷P1P=λ锟斤拷锟斤拷PP2锟斤拷λ锟斤拷锟斤拷锟絚P锟斤拷锟斤拷锟津線讹拷P1P2锟斤拷锟缴的比★拷

锟斤拷锟斤拷锟斤拷P1锟斤拷x1锟斤拷y1锟斤拷锟斤拷P2锟斤拷x2锟斤拷y2锟斤拷锟斤拷P锟斤拷x锟斤拷y锟斤拷锟斤拷锟絫锟斤拷

锟斤拷锟斤拷OP=锟斤拷OP1+λOP2锟斤拷锟斤拷1+λ锟斤拷锟斤拷锟斤拷锟斤拷锟饺凤拷锟絚锟斤拷锟斤拷锟斤拷式锟斤拷

锟斤拷锟斤拷x=锟斤拷x1+λx2锟斤拷/锟斤拷1+λ锟斤拷锟斤拷

锟斤拷锟斤拷y=锟斤拷y1+λy2锟斤拷/锟斤拷1+λ锟斤拷锟斤拷锟斤拷锟斤拷锟饺凤拷锟絚锟斤拷锟剿癸拷式锟斤拷

锟斤拷锟斤拷锟揭傦拷锟斤拷锟斤拷锟斤拷锟绞斤拷咏锟斤拷锟斤拷锟斤拷蚓�讹拷P1P2锟侥讹拷锟饺凤拷锟絚锟斤拷式锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷OC=λOA+μOB锟斤拷锟斤拷λ+μ=1锟斤拷锟絫A锟斤拷B锟斤拷C锟斤拷锟絚锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫旓拷式

锟斤拷锟斤拷锟节★拷ABC锟斤拷锟斤拷锟斤拷GA+GB+GC=O锟斤拷锟絫G锟斤拷锟紸BC锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟絣锟斤拷

锟斤拷锟斤拷锟斤拷b≠0锟斤拷锟絫a//b锟斤拷锟斤拷要锟絣锟斤拷锟角达拷锟斤拷唯一锟斤拷锟斤拷(sh锟斤拷)λ锟斤拷使a=λb锟斤拷

锟斤拷锟斤拷a//b锟斤拷锟斤拷要锟絣锟斤拷锟斤拷xy—xy=0锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷0平锟斤拷锟斤拷锟轿猴拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷直锟侥筹拷要锟絣锟斤拷

锟斤拷锟斤拷a⊥b锟侥筹拷要锟絣锟斤拷锟斤拷ab=0锟斤拷

锟斤拷锟斤拷a⊥b锟侥筹拷要锟絣锟斤拷锟斤拷xx+yy=0锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷0锟斤拷直锟斤拷锟轿猴拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟絆a=锟斤拷x锟斤拷y锟斤拷锟斤拷b=锟斤拷x锟斤拷y锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絓锟斤拷

锟斤拷锟斤拷1锟斤拷锟斤拷锟斤拷锟侥加凤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟侥加凤拷锟組锟斤拷平锟斤拷锟斤拷邊锟轿凤拷锟絫锟斤拷锟斤拷锟斤拷锟轿凤拷锟絫锟斤拷

锟斤拷锟斤拷AB+BC=AC锟斤拷

锟斤拷锟斤拷a+b=锟斤拷x+x锟斤拷y+y锟斤拷锟斤拷

锟斤拷锟斤拷a+0=0+a=a锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟接凤拷锟斤拷锟絓锟斤拷锟缴ｏ拷

锟斤拷锟斤拷锟斤拷锟絈锟缴ｏ拷a+b=b+a锟斤拷

锟斤拷锟斤拷锟結锟斤拷锟缴ｏ拷锟斤拷a+b锟斤拷+c=a+锟斤拷b+c锟斤拷锟斤拷

锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷锟侥減锟斤拷

锟斤拷锟斤拷锟斤拷锟絘锟斤拷b锟角伙拷锟斤拷锟洁反锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷么a=—b锟斤拷b=—a锟斤拷a+b=0锟斤拷0锟侥凤拷锟斤拷锟斤拷锟斤拷0

锟斤拷锟斤拷AB—AC=CB锟斤拷锟斤拷“锟斤拷同锟斤拷锟絚锟斤拷指锟津被減”

锟斤拷锟斤拷a=锟斤拷x锟斤拷y锟斤拷 b=锟斤拷x锟斤拷y锟斤拷 锟絫a—b=锟斤拷x—x锟斤拷y—y锟斤拷锟斤拷

锟斤拷锟斤拷4锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)λ锟斤拷锟斤拷锟斤拷a锟侥乘積锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷記锟斤拷λa锟斤拷锟揭∣λa锟絆=锟絆λ锟絆锟絆a锟絆锟斤拷

锟斤拷锟斤拷锟斤拷λ锟斤拷0锟絩锟斤拷λa锟絚a同锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷λ锟斤拷0锟絩锟斤拷λa锟絚a锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷λ=0锟絩锟斤拷λa=0锟斤拷锟斤拷锟斤拷锟斤拷锟解。

锟斤拷锟斤拷锟斤拷a=0锟絩锟斤拷锟斤拷锟斤拷锟斤拷锟解實锟斤拷(sh锟斤拷)λ锟斤拷锟斤拷锟斤拷λa=0锟斤拷

锟斤拷锟斤拷注锟斤拷锟斤拷锟斤拷锟絰知锟斤拷锟斤拷锟�λa=0锟斤拷锟斤拷么λ=0锟斤拷a=0锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)λ锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷系锟斤拷(sh锟斤拷)锟斤拷锟剿旓拷(sh锟斤拷)锟斤拷锟斤拷λa锟侥幾猴拷锟斤拷锟絰锟斤拷锟角岋拷锟斤拷示锟斤拷锟斤拷a锟斤拷锟斤拷锟津線讹拷锟斤拷锟絃锟津壓縮锟斤拷

锟斤拷锟斤拷锟斤拷锟絆λ锟絆锟斤拷1锟絩锟斤拷锟斤拷示锟斤拷锟斤拷a锟斤拷锟斤拷锟津線讹拷锟斤拷原锟斤拷锟斤拷λ锟斤拷0锟斤拷锟津反凤拷锟斤拷λ锟斤拷0锟斤拷锟斤拷锟斤拷锟絃锟斤拷原锟斤拷锟侥∣λ锟絆锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟絆λ锟絆锟斤拷1锟絩锟斤拷锟斤拷示锟斤拷锟斤拷a锟斤拷锟斤拷锟津線讹拷锟斤拷原锟斤拷锟斤拷λ锟斤拷0锟斤拷锟津反凤拷锟斤拷λ锟斤拷0锟斤拷锟较縮锟教烇拷原锟斤拷锟斤拷.锟絆λ锟絆锟斤拷锟斤拷

锟斤拷锟斤拷5锟斤拷锟斤拷(sh锟斤拷)锟絚锟斤拷锟斤拷锟侥乘凤拷锟組锟斤拷锟斤拷锟斤拷锟斤拷\锟斤拷锟斤拷

锟斤拷锟斤拷锟結锟斤拷锟缴ｏ拷锟斤拷λa锟斤拷b=λ锟斤拷ab锟斤拷=锟斤拷aλb锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节旓拷(sh锟斤拷)锟侥凤拷锟斤拷锟缴ｏ拷锟斤拷一锟斤拷锟斤拷锟缴ｏ拷锟斤拷锟斤拷λ+μ锟斤拷a=λa+μa锟斤拷

锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟侥凤拷锟斤拷锟缴ｏ拷锟节讹拷锟斤拷锟斤拷锟缴ｏ拷锟斤拷λ锟斤拷a+b锟斤拷=λa+λb锟斤拷

锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷去锟缴ｏ拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�(sh锟斤拷)λ≠0锟斤拷λa=λb锟斤拷锟斤拷么a=b锟斤拷

锟斤拷锟�锟斤拷锟斤拷锟斤拷a≠0锟斤拷λa=μa锟斤拷锟斤拷么λ=μ锟斤拷

锟斤拷锟斤拷6锟斤拷锟斤拷锟斤拷锟侥的旓拷(sh锟斤拷)锟斤拷锟絜

锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟斤拷知锟缴傦拷锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷OA=a锟斤拷OB=b锟斤拷锟絫锟斤拷AOB锟絈锟斤拷锟斤拷锟斤拷a锟斤拷锟斤拷锟斤拷b锟侥夾锟角ｏ拷記锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷規(gu锟斤拷)锟斤拷0≤锟斤拷a锟斤拷b锟斤拷≤π

锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟缴傦拷锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟饺積锟斤拷锟絚锟絜锟斤拷锟斤拷一锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷記锟斤拷ab锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷锟斤拷锟絫ab=|a||b|cos锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷锟絫ab=+—锟絆a锟絆锟絆b锟絆锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟斤拷锟剿憋拷示锟斤拷ab=xx+yy锟斤拷

锟斤拷锟斤拷7锟斤拷锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟絓锟斤拷锟斤拷

锟斤拷锟斤拷ab=ba锟斤拷锟斤拷锟絈锟缴ｏ拷锟斤拷

锟斤拷锟�锟斤拷锟�λa锟斤拷b=λ锟斤拷ab锟斤拷锟斤拷锟絇锟节旓拷(sh锟斤拷)锟剿凤拷锟侥結锟斤拷锟缴ｏ拷锟斤拷

锟斤拷锟�锟斤拷锟絘+b锟斤拷c=ac+bc锟斤拷锟斤拷锟斤拷锟缴ｏ拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟斤拷锟絴

锟斤拷锟斤拷aa=|a|锟斤拷平锟斤拷锟斤拷

锟斤拷锟斤拷a⊥b锟斤拷=锟斤拷ab=0锟斤拷

锟斤拷锟斤拷|ab|≤|a||b|锟斤拷

锟斤拷锟斤拷8锟斤拷锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟絚锟斤拷锟斤拷(sh锟斤拷)锟絓锟斤拷锟斤拷锟揭�锟斤拷同锟絚

锟斤拷锟斤拷8.1锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟組锟斤拷Y锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷ab锟斤拷c≠a锟斤拷bc锟斤拷锟斤拷锟斤拷锟界：锟斤拷ab锟斤拷^2≠a^2b^2锟斤拷

锟斤拷锟斤拷8.2锟斤拷锟斤拷锟侥旓拷(sh锟斤拷)锟斤拷锟絜锟斤拷锟組锟斤拷锟斤拷去锟缴ｏ拷锟斤拷锟斤拷锟斤拷ab=ac锟斤拷a≠0锟斤拷锟斤拷锟狡诧拷锟斤拷b=c锟斤拷

锟斤拷锟斤拷8.3|ab|≠|a||b|

锟斤拷锟斤拷8.4锟斤拷a|=|b|锟斤拷锟狡诧拷锟斤拷a=b锟斤拷a=—b锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絜

锟斤拷锟斤拷1锟斤拷锟斤拷锟絰锟斤拷锟缴傦拷锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷锟絜锟斤拷锟斤拷e锟斤拷锟斤拷e锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷記锟斤拷a×b锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷锟斤拷锟絫a×b锟斤拷模锟角ｏ拷锟絆a×b锟絆=|a||b|sin锟斤拷a锟斤拷b锟斤拷锟斤拷a×b锟侥凤拷锟斤拷锟角ｏ拷锟斤拷直锟斤拷a锟斤拷b锟斤拷锟斤拷a锟斤拷b锟斤拷a×b锟斤拷锟紷锟斤拷锟斤拷锟津構筹拷锟斤拷锟斤拷系锟斤拷锟斤拷a锟斤拷b锟斤拷锟斤拷锟斤拷锟絫a×b=0锟斤拷

锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絜锟斤拷锟絴锟斤拷

锟斤拷锟斤拷锟絆a×b锟絆锟斤拷锟斤拷a锟斤拷b锟斤拷邊锟斤拷平锟斤拷锟斤拷邊锟斤拷锟斤拷e锟斤拷

锟斤拷锟斤拷a×a=0锟斤拷

锟斤拷锟斤拷a锟斤拷b锟斤拷=锟斤拷a×b=0锟斤拷

锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絜锟絓锟斤拷锟斤拷

锟斤拷锟斤拷a×b=—b×a锟斤拷

锟斤拷锟�锟斤拷锟�λa锟斤拷×b=λ锟斤拷a×b锟斤拷=a×锟斤拷λb锟斤拷锟斤拷

锟斤拷锟�锟斤拷锟絘+b锟斤拷×c=a×c+b×c锟斤拷

锟斤拷锟斤拷注锟斤拷锟斤拷锟斤拷锟絔锟叫筹拷锟斤拷锟斤拷“锟斤拷锟斤拷AB/锟斤拷锟斤拷CD”锟角沒锟斤拷锟斤拷锟絰锟侥★拷

锟斤拷锟斤拷4锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿诧拷锟斤拷式

锟斤拷锟斤拷1锟斤拷锟絆锟絆a锟絆—锟絆b锟絆锟絆≤锟絆a+b锟絆≤锟絆a锟絆+锟絆b锟絆锟斤拷

锟斤拷锟斤拷锟劫�锟斤拷覂H锟斤拷a锟斤拷b锟斤拷锟斤拷r锟斤拷锟斤拷邊取锟斤拷號锟斤拷

锟斤拷锟�锟斤拷诋锟斤拷覂H锟斤拷a锟斤拷b同锟斤拷r锟斤拷锟斤拷邊取锟斤拷號锟斤拷

锟斤拷锟斤拷2锟斤拷锟絆锟絆a锟絆—锟絆b锟絆锟絆≤锟絆a—b锟絆≤锟絆a锟絆+锟絆b锟絆锟斤拷

锟斤拷锟�锟斤拷佼锟斤拷覂H锟斤拷a锟斤拷b同锟斤拷r锟斤拷锟斤拷邊取锟斤拷號锟斤拷

锟斤拷锟�锟斤拷诋锟斤拷覂H锟斤拷a锟斤拷b锟斤拷锟斤拷r锟斤拷锟斤拷邊取锟斤拷號锟斤拷

锟斤拷锟斤拷锟斤拷锟絇锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷(sh锟斤拷)锟絎知锟絉锟絚锟絉锟斤拷

锟斤拷锟斤拷什么锟角合旓拷(sh锟斤拷)锟斤拷锟斤拷锟絴锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟竭★拷锟斤拷前锟绞傦拷锟斤拷志愿锟斤拷锟斤拷取锟街旓拷(sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號