奋乃静的含量测定采用
A．紫外分光光度法B．高效液相色谱法C．非水溶液滴定法D．铈量法E．银量法
参考答案：C
矛盾双方只是对立不可能统一。 ( )
— How do you find your trip to the Great Wall?
— We had an awful time! ______, George got sick the day we arrived.
A．on the other hand
B．to begin with
C．as a consequence
D．on the contrary
