将50mL0.10mol/LNH3•H2O(已知Kb=1.75×10-5)溶液和20mL0.10mol/LHCl混合后,稀释至100mL,溶液的()。
参考答案:9.42
绝对粗糙度
The meeting will begin in 10 minutes, ________we can sing a few songs
A.though
B.however
C.meanwhile
D.besides