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