将某段落的对齐方式设置为“两端对齐”后,下列说法最准确的是( )。
A. 原设置的首行缩进无效,最后一行采用左对齐,其余各行的两端以文档左右边界向两端对齐
B. 原设置的首行缩进有效,最后一行采用左对齐,其余各行的两端以文档左右边界向两端对齐
C. 原设置的首行缩进无效,段落中所有的行的两端分别以文档左右边界向两端对齐
D. 原设置的首行缩进有效,其余各行的两端分别以文档左右边界向两端对齐
ThomasEdisonwasprobablythegreatest________inAmericanhistory.Whenhefirstattendedschool,histeacherscomplainedthathewas"tooslow"andhardtohandle._______,Edison'smotherdecidedtotakehersonoutofschoolandteachhimathome.TheyoungEdisonwasfascinatedbyscience.Attheageof10hehadalready________hisfirstchemistrylaboratory.Edison'sinexhaustibleenergyandgenius(whichhereportedlydefinedasmorethan“1percentinspirationand99percentperspiration”)eventually_______morethan1,300inventionsinhislifetime.WhenThomasEdisoninventedthelightbulb,hetriedover2,000experimentsbeforehegotittowork.Ayoungreporteraskedhimhowitfelttofailsomanytimes.Hesaid,“Ineverfailedonce.Iinventedthelightbulb.Itjusthappenedtobea2,000-step_______.”