听下面一段材料,回答第1-3题。 |
1. Where is the woman from? |
A. South Korea. B. Japan. C. America. |
2. Why did the man go to Japan? |
A. He studied there. B. He worked there. C. He traveled there. |
3. What’s the relationship between the two speakers? |
A. Teacher and student. B. Classmates. C. Manager and employee. |
你能帮帮他们吗
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已知|3x-y-1|和根号2x+y-4互为相反数,求x+4y的平方根.
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