問題詳情

___ 7. Glass has a hardness of 5.5. According to the table, which could glass scratch?  
(A)topaz
(C)feldspar(
(B)apatite
(D)diamond

參考答案

答案:B
難度:適中0.454545
統計:A(0),B(5),C(0),D(5),E(0)

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