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Sulfur has occasionally been found in

时间: 2022-12-20 栏目：教育知识

Sulfurhasoccasionallybeenfoundin

问题：

[单选]Sulfurhasoccasionallybeenfoundintheearthinanalmostpurestate.

A.regularly
B.accidentally
C.sometimes
D.successfully

参考答案：C

参考解析：

本题暂无解析

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