（1分20秒-1分50秒）And as you look at what went on，the problem wasn'；t that there was a system that didn'；t work well enough，the problem was that（）.
（1分20秒-1分50秒）And as you look at what went on，the problem wasn'；t that there was a system that didn'；t work well enough，the problem was that（）.
A.We didn’t have a surveillance system
B.We didn’t have a control system
C.We didn'；t have a system at all.
D.We didn’t have a response system
正确答案：We didn'；t have a system at all.
Tag：高级英语视听说与逻辑思辨
时间：2023-12-18 15:35:47
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