题目内容：
In terms of nanotechnology, Kim was the first__________.
A．to use it in washing machines B．to come up with the idea
C．to introduce it to Korea
D．to apply it to socks
参考答案：
答案解析：
单选题：In terms of nanotechnology, Kim was the first__________.
- 题目分类：公共英语三级
- 题目类型：单选题
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B．to come up with the idea
C．to introduce it to Korea
D．to apply it to socks