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【判断题】
城市生态系统必须遵循可持续发展的理论。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】Would you just______an eye over this letter before I put it in the post?
A.
throw
B.
cast
C.
fling
D.
toss
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【单选题】听力原文：W: Can I help the next person in line? M: I just need to send this letter the fastest way possible. W: Let me see. We have overnight business service. That takes just two days. Where does the con...
A.
In a post office.
B.
In a hotel.
C.
In a bank.
D.
In the restaurant.
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