new cure for this disease that medical experts have recently developed proves to be most

new cure for this disease that medical experts have recently developed proves to be most effective, although it can not completely kill all the viruses.
A. A; a
B. The; /
C. /; the
D. A; the

A. A; a(答案→)B. The; / C. /; theD. A; the解析：这题考察冠词的用法：第一空填the，特指医学专家最近开发的疾病的新疗法，第二空不填，most表示非常。选B。

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