Fiber-optic cables can carry hundreds of telephone conversations______.

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问题 Fiber-optic cables can carry hundreds of telephone conversations______.

选项 A、simultaneously
B、spontaneously
C、homogeneously
D、contemporarily

答案A

解析副词词义辨析题。题意：“光缆可以同时支持成百上千次通话。”A，simultaneously：同时地，同步地。B spontaneously：自然地，自发地。C homogeneously：同类地。D contemporarily：当代地，同时代地。

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专业英语四级

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