不知道总体方差或标准差时无法计算抽样误差。
错误
暂无解析
Notuntilrecently_____thatThompsonhadbentellingthetruthallalong
Attheendoftheconference,allthe_(participate)wereaskedtofilloutaquestiolmaire
BeforetheSmithsmovedtoNewYork,theylivedinaquiet___(neighbor)ofBoston.
从本质上讲,清末新政是地主阶级的自救运动,它缓解了社会矛盾和危机。
Thetwinsaresoalikethatitsalmost___(possible)totellthemapart.