問題詳情
45. In lines 17-18, the author mentions the "expansion of halitecrystals...by heating and of sulfates and similar salts by hydration"in order to
(A) present an alternative theory about crystal growth
(B) explain how some rocks are not affected by salt
(C) simplify the explanation of crystal prying and wedging
(D) introduce additional means by which crystals destroy rocks
(A) present an alternative theory about crystal growth
(B) explain how some rocks are not affected by salt
(C) simplify the explanation of crystal prying and wedging
(D) introduce additional means by which crystals destroy rocks
參考答案
答案：D
難度：簡單0.714286
統計：A(0),B(2),C(0),D(5),E(0)
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