問題詳情

【題組】70. What does the underlined word “it” in Paragraph 5 refer to?
(A)A type of ice-salt mixture.
(B)A newly found protein.
(C)Fish blood.
(D)Sugar molecule.

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)