脱丁烷塔丁烷产品中C3含量偏高可能是（）
A、脱丁烷塔底至沸温度高
B、脱丁烷塔顶回流小
C、脱丙烷塔底再沸温度偏低
参考答案：C
—Do you think their table tennis team will win the first place at the coming Asian Games —（）Ours is much per than theirs.
A. Of course
B. It depends
C. Don't mention it
D. By no means
请写出“桂林山水甲天下，玉碧罗青意可参”诗句的作者、朝代和篇名。
