规范根据各海区在一年内各时期的风浪情况，划分若干“季节区”，下列属于我国的沿海季节区：（）
参考答案：夏季区与热带区
Janny ____ have kept her word. I wonder why she changed her mind. [ ]
A. must
B. should
C. need
D. would
______具有世界统一的网络结点接口，所有的网络单元都有标准的光接口。
