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问题
问答题
证明:
其中a大于1,[x]表示不超过x的最大整数.并求出
与上式相当的表达式.
答案
参考答案:
[证]
补全对话,情景问答
从Ⅱ栏中找出与Ⅰ栏相对应的句子。
( )1. Where's my basketball?
( )2. What colour?
( )3. What would you like?
( )4. What do you like?
( )5. Do you play the violin?
A. I'd like an accordion.
B. Yellow.
C. It's in the study.
D. Yes, I do.
E.I like the red piano.
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填空题
电机自动跳闸原因()
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