北固山被称为？

A. 立意要正确鲜明
B. 按照实际情况来确定立意
C. 立意要有新意
D. 要尽量做到深刻
E. 事理要集中

A. serves as a sea painter
B. detaches automatically
C. is used to rig the boarding ladder
D. is cut immediately as it is of no further use