31 What does the underlined phrase “the tip of the iceberg” refer to?(A)A small part of polymer

問題詳情

31 What does the underlined phrase “the tip of the iceberg” refer to?
(A)A small part of polymer materials technology
(B)One of the difficult problems in gene therapy research
(C)The founding of Insert Therapeutics in Pasadena, Calif.
(D)The salary of a senior scientist and employee number one

參考答案

答案：A
難度：適中0.45
統計：A(9),B(7),C(3),D(0),E(0)

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