皮皮学，免费搜题
登录
搜题
【单选题】
Because some ports are becoming increasingly limited in their ability to handle ever-larger ships it is possible that ___.A.
ship sizes will become smaller
B.
massive government programs will do what is necessary to upgrade the smaller ports
C.
large ships will go to “hub” ports where “feeder” ships will traverse to and from the smaller ports
D.
ocean shipping costs will rapidly decline
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】简述标记化合物的纯度指标及其异同点
【简答题】双子叶植物叶的解剖结构中，叶肉由一层栅栏组织和一层海绵组织构成。( )
相关题目：