问题
单项选择题
A．50.
B．80.
C．150.
D．180.
答案
参考答案：B
解析：[听力原文]
How many countries have ratified the United Nations Convention against Corruption so far
搜题请搜索小程序“爱下问搜题”
A．50.
B．80.
C．150.
D．180.
参考答案：B
解析：[听力原文]
How many countries have ratified the United Nations Convention against Corruption so far