有機化學題目
請問圖片中哪個答案較好?
http://i.imgur.com/vYlUgZz.jpg
![](https://i.imgur.com/vYlUgZz.jpg)
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推
01/21 15:28, , 1F
01/21 15:28, 1F
推
01/21 18:46, , 2F
01/21 18:46, 2F
→
01/21 18:56, , 3F
01/21 18:56, 3F
→
01/21 18:58, , 4F
01/21 18:58, 4F
![](https://i.imgur.com/sHI9WnZ.jpg)
→
01/21 18:58, , 5F
01/21 18:58, 5F
推
01/21 21:19, , 6F
01/21 21:19, 6F
→
01/21 21:20, , 7F
01/21 21:20, 7F