【多选题】碘量法测定水体中溶解氧主要包括那几个步骤
【单选题】—Our school boy basketball players won the championship at the 2013 City Basketball Match. — . They had been training that hard.
【判断题】( )交流双速电动机实现低速/高速变换时,其定子线圈的接线方式保持不变。
【单选题】–The players in Super Brain can work out different problems in a very short time. – they are! They have super brains indeed.
【单选题】Tom's team is _______ 55 players while Mary's _____ 70 players. [ ]
B.
consisted of; makes up of
D.
made up of; consists of
【单选题】()学说开创了视觉艺术领域中形式主义的先河。
【简答题】某企业采用96%铸造用硅砂,主要粒度组成为4筛,首筛号40,尾筛号100,其中100号筛上砂量较大,其粒度的平均细度为53。请写出该砂的牌号。
【单选题】While playing chess, the two players usually sit ______ each other.