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- 1英语:根据中文,补全下列句子.每空一词.
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- 3Open your books and turn to ___(page) 21.
- 4翻译:"he always has his lunch at one o'clock in the afternoon.
- 5解一元一次不等式的步骤: (1)_; (2)_; (3)_; (4)_; (5)_.
- 6It is given that the nth term of a sequence is 2(n-1)/2.what is the 4th term of the sequence
- 7两地相距600米,两车相向而行,4小时后两车相遇,已知甲车的速度是乙车的4/5,求甲乙
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- 10KO2 + CO2 = O2=K2CO3