【題目】The doctor thought the medicine was perfect，but it didn't ________the disease at all.

A．work out

B．solve

C．do

D．have an effect on

【答案】D

【解析】work out意為“解出；解決”；solve意為“解決”；do意為“做；可以；行”；have an effect on意為“對(duì)……有影響；對(duì)……起作用”。根據(jù)句意應(yīng)選D項(xiàng)，表示“對(duì)這病根本不起作用”。

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