题目内容：
This video may be freely reproduced ________ commercial promotion or sale.
A．as for B．except for
C．thanks to
D．up to
参考答案：
答案解析：
单选题：This video may be freely reproduced ________ commercial prom
- 题目分类：英语运用能力测试
- 题目类型：单选题
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B．except for
C．thanks to
D．up to