問題詳情
7．根据图中各地的白昼长度变化可知
(A)a月内①—④各地的夜长均长于昼长
(B)b月内①—④各地的昼长均长于夜长
(C)③地较②地昼夜长短的年变幅大
(D)③地与④地之间的某一纬度上昼夜长短变化为零
(A)a月内①—④各地的夜长均长于昼长
(B)b月内①—④各地的昼长均长于夜长
(C)③地较②地昼夜长短的年变幅大
(D)③地与④地之间的某一纬度上昼夜长短变化为零
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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