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【简答题】
大理石的抗风化性能和耐酸性能较差，表面磨光的大理石一般不宜用作室外装修，用于室外装饰的大理石应具备由单一矿物组成、质纯、杂质含量少且性能______等特点，如汉白玉、______等。
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皮皮学刷刷变学霸
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【单选题】听力原文：M: Hi Melissa! Welcome back! Did you have a good time in Peru? W: It was absolutely breathtaking. By the way, did you receive a copy of my final paper? M: Yes, it was very good. I want to congrat...
A.
She is an international student.
B.
It's her last semester in school.
C.
She has an internship position.
D.
She didn't feel secured in Peru.