题目：
| 选词填空。 | |
2. ____________ do you go to school? I go to school ____________ foot. 3. Look ____________ the traffic lights. 4. How do your parents ____________ to work? 5. My father often goes ____________ Canada by plane. 6. ____________ at a red light. 7. John usually goes to school ____________ bike. 8. How can I ____________ to People's Park? 9. Yellow lights mean " ____________". |
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B解析：6月份的平均人数为：1000+20*30/30-10*90/30=990人
5mm，覆盖9mm，四个第一磨牙Ⅱ类