“文而不晦，俗而不俚”“明白如话”描述的古代文学成就是（）
A.楚辞
B.唐诗
C.宋词
D.元曲
参考答案：D
Though I am improving in my study, I still have a long way to go _____some of my classmates.
A．to compare with
B．to compare to
C．compared with
D．comparing with
催化裂化装置中提升管反应器内催化剂输送属于（）。
