The main purpose of this text is to______.
A．present the current status of the debate on the RU-486 pill
B．provide a historical account of the RU-486 pill's use to date
C．propose solutions by which the RU-486 pill can feasibly be introduced into such nations as the United States
D．explain the RU-486 pill's impact on the larger issue of abortion

A.
A．present
B.provide
C.propose
D.explain

【参考答案】

A
属主旨思想题。文章第一段第一、二句指出：每当一种医疗方法或技术一登场，它几乎都免不了引起各方的争论，正在进行......

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