A-A+ The Craighead Caverns have been known ________ 2022-08-06 14:50:19 问答库 阅读 179 次 问题详情 The Craighead Caverns have been known ________. A. through history B. since the time of the Indian nations C. since 1905D. since divers explored them请帮忙给出正确答案和分析,谢谢! 参考答案 正确答案:B