新购制的玻璃器皿含有游离碱，先用（ ）浸泡数小时后，再用清水洗净。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30401' and id < 2457685 and id<>'2457685' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30401' and id > 2457685 and id<>'2457685' order by id asc limit 5