题目内容
酚酞指示剂的Ka=6×10^-10，其变色范围是
2021-10-18
A.3.1～4.4
B.6.2～7.6
C.4.4～6.2
D.8.2～10.2
E.9.4～10.6
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SQL Error: select id,body,options from ***_enewstiku where sourceid='26011' and id < 2182879 and id<>'2182879' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26011' and id > 2182879 and id<>'2182879' order by id asc limit 5