题型:问答题 简答题 —What did your father ask you just now?—He asked me ______.A.Whom I was chatting withB.where I am with my friendsC.when would I go homeD.if I have finished my homework 查看答案
题型:问答题 简答题 为消除NO和NO2对大气的污染,常用碱溶液吸收其混合气。有m mol NO2和n mol NO组成的混合气体,用NaOH溶液将其完全吸收,无气体剩余。现有浓度为a mol·L-1的NaOH溶液,则需此NaOH 溶液的体积是( )A.LB.LC.LD.L 查看答案