【Reading Comprehension】 Radiocarbon dat..-阿摩線上測驗
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M 大二下 (2018/03/23)
(C)一年內不利的氣候條件。當氣候不佳,水分不足時,年輪會生長得比較窄。Growth rings, however, are not always the same thickness. They vary for several reasons. Environmental factors rigidly control the degree of growth of an annual ring or determine whether, in fact, an annual ring appears or not in any particular year. Th.....觀看完整全文,請先登入 |