“杜宇声声不忍闻。欲黄昏，雨打梨花深闭门。”作者与词牌是？
参考答案：作者是李重元，词牌是《忆王孙》。
While I ______ a sunny afternoon in the park yesterday, I suddenly noticed a strange man ______
towards me.[ ]
A. enjoyed, walked
B. was enjoying, walk
C. was enjoying, walking
D. enjoyed, to walk
下面属于在区域发展过程中核心对边缘的正效果的是( )。
A．边缘农产品及原料的销售量增加
B．边缘的劳动力、资金等流入核心区
C．次级核心发展
D．边缘某些发展机会被剥夺
