单选题 Martin decided that he had no adequate proof.
【正确答案】 A
【答案解析】[解析] 本句意思是“马丁断定他没有充足的证据”。句中adequate意为“足够的”,例如,Our bodies need adequate nutrition.我们的身体需要充足的营养。enough“足够的”,例如,Enough is as good as a feast.知足常乐。convincing“令人信服的”,例如,Her efforts to feign cheerfulness weren’t convincing.她的强颜欢笑并不使人信服。qualified“有资格的”,例如,Our team has qualified for the semi-final.我队已有资格进入半决赛。appropriate“适当的”,例如,Plain,simple clothes are appropriate for school wear.简单朴素的衣服适合在学校里穿。只有enough意思上和adequate最接近。