小红同学发现他家菜园中的蔬菜生长不旺,是缺乏氮肥所致.他施用一种叫做硝酸铵(NH 发布时间:2017-05-22 05:21 │ 来源:www.tikuol.com 题型:问答题 问题: 小红同学发现他家菜园中的蔬菜生长不旺,是缺乏氮肥所致.他施用一种叫做硝酸铵(NH4NO3)的氮肥后情况大为改观.若他向菜园中施入了16Kg硝酸铵,相当于向菜园中施入了______Kg的氮元素.
题型:问答题 _______ I’m not sure of winning the match, I will have a try anyway. A.WhileB.BeforeC.OnceD.Since 查看答案
题型:问答题 “Do your parents agree to your doing that?” “Yes, of course. In fact, they always ______ me to try something new.”A.hopeB.suggestC.supportD.encourage 查看答案