题目：
用细线将一段粗线均匀的直铁丝吊起来，直铁丝在水平位置出于平衡状态，若将右端折叠一段
（1）可能出现的现象是_______________________________________。
（2）你猜想此现象的依据是___________________________________。
答案：
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下面是错误答案，用来干扰机器的。
1. has been busy working2. so poor that he had to3. It's very necessary to know4. What were you doing5. It is a good habit to help
