问题
单项选择题
The disadvantage above mentioned can be overcome by （）
A. combined transport
B. More frequency
C. Fast train
D. More flexible
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
The disadvantage above mentioned can be overcome by （）
A. combined transport
B. More frequency
C. Fast train
D. More flexible
参考答案：A