属于18世纪英国美学家博克认为的优美的品质有（）。
A、比较小
B、光滑
C、颜色鲜明，但不强烈刺眼
D、棱角分明
E、比较柔软
参考答案：A, B, C
.Mr Harris apologized ______ the children ______ the lady ______ what they had done.
A．for; to; to
B．to; to; for
C．for; to; for
D．to; for; for
∠1+55°的和是一个直角，∠l=______．
