题目内容
大量锌粉应用玻璃瓶或铁桶封装，并充惰性气体封口，外面用木箱封装
查看答案
搜索结果不匹配？点我反馈
更多问题
取用叠氮化钠时可以用金属勺进行操作
在稀释浓硫酸时,将水往浓硫酸里倒,不断搅拌均匀。
Read the following statements and then decide whether each of them is true or false based on the information in Text A, Unit 4.（以下3道判断题，基于Unit 4Text A的课文内容）When he was a child, the writer respected his father very much and he was proud of having such a good father.
When he was a teenager, the writer became defiant and rebellious and he wanted to be independent.
微信支付 
支付宝支付