阿摩線上測驗
39.A narrow growth ring between two wide growth ring would probably indicate _____ .
(A) an unusually warm winter
(B) the death of an old tree
(C) unfavorable climatic conditions during a single year
(D) wood cells that had grown to be very large
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統計： A(28), B(13), C(102), D(16), E(0) #881432
統計： A(28), B(13), C(102), D(16), E(0) #881432
