[单项选择]J.J.汤姆森是电子的发现者和诺贝尔物理奖获得者，他培养了许多物理学家，其中有7人获诺贝尔奖，32人成为伦敦皇家学会成员，83人成为物理学教授。这表明，创造性研究所需要的技巧是能够教授和学习的。 以下哪项陈述是上面论证所依赖的假设
A. 所有由汤姆森培养的科学家都以他们创造性的科学研究而著称。
B. 至少有一位由汤姆森培养的著名科学家在跟汤姆森学习之前不是有创造性的研究者。
C. 物理学中的创造性研究习惯不一定是其他学科的创造性研究所需要的。
D. 那些最有研究成就的科学家通常都受过著名科学家的专业培养。

One day a very wealthy American, Hiram Boost, came to Macasso—you may have heard of Boost, he’s in films-and he said he had bought, secretly, a valuable 16th century "old master". He said, "I know that the English government won’t let me take it out of England, but I have a plan to get round that. I want you to paint a picture—it doesn’t matter what it is-on top of the ’old master’." Hiram then explained that he could quite easily get Macasso’s picture removed from the canvas when he got to New York, without damaging the painting underneath. Well, Macasso painted a picture of a London gas-works on it, and old Boost got the canvas to New York all right and sent it to the firm he knew to have Maeasso’s painting removed. About a week later he got a telegram from the firm. It said: "We have removed the picture of London gas-works, also ’old master’, and are now down to a portrait of Que
A. To cover the original one.
B. To make it more valuable.
C. To change it from classic to modern piece.
D. To describe what London gas-works look like.