問題詳情

【題組】33.The approximate age of a tree can be determined by _____ .
(A) counting the rings
(B) analyzing the structure of the cells
(C) examining the cambium
(D) measuring the width of the rings

參考答案

答案：A
難度：適中0.666667
統計：A(50),B(9),C(5),D(9),E(0)