问题
填空题
按规律填数字，写阿拉伯数字即可。
1. one, two, three, four,
2. one, three, five, seven,
3. one, two, four, five, seven,
4. ten, nine, eight,
答案
1. five或5 2. nine或9 3. eight或8 4. seven或7
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按规律填数字，写阿拉伯数字即可。
1. one, two, three, four,
2. one, three, five, seven,
3. one, two, four, five, seven,
4. ten, nine, eight,
1. five或5 2. nine或9 3. eight或8 4. seven或7