By giving him electrical shock treatment, the doctor has______ a partial cure of his short sightedness.

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问题 By giving him electrical shock treatment, the doctor has______ a partial cure of his short sightedness.

选项 A、affected
B、effected
C、afforded
D、rendered

答案B

解析 effect,“实现”、“达到……的目的”,如:The new minister hopes to effect changes in the government’s policy.这位新部长希望改变政府的政策。affect,“影响”,如:Smoking affects health.吸烟影响健康。afford,“负担得起”,如:I can’t afford three weeks away from work.我无法丢下工作三星期。render:present,offer,“呈递”、“提供”。
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