微信搜索关注"91考试网"公众号,领30元,获取公务员、事业编、教师等考试资料40G!
????ìa ??ìú??í?è???áD?3èüòo?D£??ü1?·¢éú?ˉo?·′ó|μ?ê?
A .Al2£¨SO4£?3
B.FeSO4
C.CuSO4
D.Fe2£¨SO4£?3
????ìa ??ìú??í?è???áD?3èüòo?D£??ü1?·¢éú?ˉo?·′ó|μ?ê?
A.Al2£¨SO4£?3
B.FeSO4
C.CuSO4
D.Fe2£¨SO4£?3
±?ìa′e°?£oD
±?ìa?a??£o·???£o?ˉo?·′ó|ê??à??·′ó|??éú3éò???2ú??μ?·′ó|£??ù?Y?eê?ìúμ??ˉ?§D??êà′??′e?D???′?é£?
?a′e£oA?¢?eê?ìú???ú?eê??áμ?oó??£?2??ü????3??eê??á£??′ìúoíáò?á?áμ?·′ó|2??ü·¢éú1êA′í?ó£ 91exam .org?
B?¢?eê?ìúoí??ìúà?×ó????2??ü·¢éú·′ó|£?1êB′í?ó£?
C?¢?eê?ìú???ú?eê?í-μ??°??£??éò????eê?í-′ó??èüòo?D????3?à′£???·′ó|ê?óú????·′ó|£?1êC′í?ó£?
D?¢?eê?ìúoíèy??ìú?????éò??ˉo?£?μ?μ???ìúà?×óμ???£?ê?óú?ˉo?·′ó|£?1êD?yè·£?
1ê??D£?
μ??à£o±?ìa??2é?§éú?eê?ìúμ??ˉ?§D??ê·???μ??aê?£?×¢òa?aê?μ??¨ò?oíó|ó?ê??aìaμ?1??ü£????è2?′ó£?
±?ìa?ùê???μ?£o???eê??°???ˉo?????
±?ìa??ò×3ì?è£o??à§????
First catch your hare,than cook him. 先得兔而后烹之. /到手东西才算数.