安装（含拆卸）、改造、维修单位应当履行（）责任。
ABCD
暂无解析
_______isknowntoall，Chinawillbean_______powerfulcountryin20or30years’time.
ForelectoralpurposesBritainisdividedinto659constituencies,eachofwhichreturns________totheHouseofCommons.
翻译：Itisnousetellinggrown-upchildrennottomakemistakes,bothbecausetheywillnotbelieveyou,andbecausemistakesareanessentialpartofeducation.
Whenyoufallinloveforthefirsttime,it’ssurprising______inconveniencesyoucanputupwith.