接地装置焊接应采用搭接焊，其搭接长度应满足的要求有()。
AC
暂无解析
Thedevastatingfloodsanddroughtsthatimposedarecurrenttaxofsufferingonthefarmersnolongeroccur.Egyptianagriculturehasbeentransformed,andindustryisbenefitingfrompowergeneratedbythedam.（）
Ifyoutrytolearntoomanythingsatatime,youmayget________.
ModernEnglishwordsman,woman,child,eat,fight,etc,originatefrom______.
MarkTwain’sparticularconcernaboutthelocalcharacterofaregioncameaboutas“localcolorism,”auniquevariationofAmericanliterary().