---Why don’t you go to medical college and be a doctor?---Oh. It calls for a great deal of ______with long training, which I am afraid I don’t have.A.strengthB.energyC.wisdomD.patience
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D解析考查名词用法。strength 力量；energy能量；wisdom智慧；patience耐性。联系a doctor 的语境可知，patience最佳。