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????ìa &n bsp;??áDà?×ó?úèüòo?D?ü′óá?12′?μ?ê?
A.H￡??￠NO3￡-?￠Fe3￡??￠Na￡?
B.Ag￡??￠NO3￡-?￠Cl￡-?￠K￡?
C.K￡??￠Ba2￡??￠OH￡-?￠SO42￡-
D.Cu2￡??￠NH4￡??￠Br￡-?￠OH￡-
????ìa ??áDà?×ó?úèüòo?D?ü′óá?12′?μ?ê?
A.H￡??￠NO3￡-?￠Fe3￡??￠Na￡?
B.Ag￡??￠NO3￡-?￠Cl￡-?￠K￡?
C.K￡??￠Ba2￡??￠OH￡-?￠SO42￡-
D.Cu2￡??￠NH4￡??￠Br￡-?￠OH￡-
±?ìa′e°?￡oA
±?ìa?a??￡oA?yè·?￡
B′í?ó￡?ò?à?×óoí?èà?×ó2??ü12′??￡
C′í?ó￡?±μà?×óoíáò?á?ùà?×ó12′??￡
D′í?ó￡?í- à?×óoí?a???ùà?×ó2??ü′óá?12′??￡
±?ìa?ùê???μ?￡o??à?×ó·′ó|??
±?ìa??ò×3ì?è￡o??à§????
Hope and courage are two bright diamonds in the crown of success. 希望和勇敢是成功之冕上两颗明亮的钻石. 
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