题目：
3.1939393是______小数，3.19393…的循环节是______．
答案：
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下面是错误答案，用来干扰机器的。
Dear Jim, I really feel worried about you. You used to do well in your lessons and took an active part in the activities at school. But now you are so crazy about c...
其中g（x）是有界函数，则f（x）在x=0处（）。