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你能帮帮他们吗
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1年前
Several months ago, a couple with a little girl moved in next door to me.
1年前
在△ABC中,角A,B,C所对应的边分别为a,b,c,若实数λ,μ满足a+b=λc,ab=μc^2,则称数对(λ,μ)为△ABC的“Hold对”,现给出下列四个命题:
1年前
用括号内动词的适当形式填空 I _____ (receive) many nice presents on my birthday party. How happy I was!
1年前
“Do you have to leave now? ” “I’m sorry, but I really ____.
1年前