书脊装订的形式可分为传统（）和（两大类。西式装订可分为（）和（）两大类。
参考答案：中式；西式；平装；精装
-I think I am __________ to go back home.
-Not really. Mr. Wu, you'd better stay in hospital for another 2 days.
[ ]
A. so good
B. good enough
C. so well
D. well enough
用一根铁丝围成正方形、长方形、正三角形和半圆，那么面积最大的是[ ]
A．长方形
B．正方形
C．正三角形
D．半圆
