填空题

The word "petroleum" comes from ______ and ______.

【参考答案】

Latin, Greek
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你可曾在航海时遇到有浓雾的时候吗你仿佛被困在了触手可及的一片白茫茫中，不见天日。你乘坐的巨轮，靠测深锤或测深线的指引，举步维艰地靠向海岸，既紧张又焦急不安；而你则心怦怦跳，等着有事要发生。我在接受教育之前宛如那没有指南针，没有测深锤的船，无从知道距离港口还有多远。
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A．Because it takes too long to process all the applications.B．Because its resources are limited.C．Because it is a library for special purpose.D．Because there is a shortage of staff.
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B．Because its resources are limited.
C．Because it is a library for special purpose.
D．Because there is a shortage of staff.
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