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问题
判断题
氧气本身不燃烧，但能助燃。
答案
参考答案：对
补全对话，情景问答
根据问句选答语。
( )1. When is lunch?
( )2. What's the fourth day of the week?
( )3. What's the seventh month?
( )4. How many months are there in a year?
( )5. Which month is the best for my birthday?
A. I don't know.
B. At 12:00.
C. Twelve.
D. Wednesday.
E. July.
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选择题
由1，2，3，4，5这5个数字组成的没有重复数字的三位数中，各位数字之和为奇数的共有（ ）
A．36个
B．24个
C．18个
D．6个
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