正确答案: D

米开朗基罗

题目：《大卫像》是意大利文艺复兴时期的重要作品。（ ）

解析：D

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举一反三的答案和解析：

[单选题]He does not work but he gets a good__________from his investments．

income

解析：income是“收入”，不用工作也可以有收入。B．earning是“挣来的钱”；A．wage是“工资”，通常是周薪或按小时、按天发工资；D．salary是“薪水”，通常是月薪或年薪，都是要工作才能获得的，前一分句说明了“他不工作”，所以其他三项都不符合。

[单选题]What is the most obvious difference between men and women shoppers?

The time they take to buy clothes.

解析：

    47．答案为D  此考题为推理题。选项A和C显然与事实相矛盾。文中未提及男人不在乎价格的高低而女人喜欢买便宜货，但文中并未暗示喜不喜欢讨价还价足男顾客与女顾客之间最明显的差别。从文章中可以看出两者最明显的区别应在于他们花在购买衣服上的时间长短，故应选D。

[单选题]作为一门独立学科的艺术学诞生于（ ）

19世纪末

[单选题]Did you ever have someone's name on the tip of your tongue and yet you were unable to recall it? (21) this happens again, do not try to recall it. Do something (22) for a couple of minutes, and the name may come into your head. The name is there. Since you have met (23) person and learned his name. It only has to be dug out. The initial effort to recall (24) the mind for operation, but it is the subconscious (25) that go to work to dig up a dim memory. Forcing yourself to recall almost never helps because it doesn't loosen your memory; it only tightens it. Students find the preparatory method helpful (26) examinations. They read over the questions (27) trying to answer any of them. Then they answer first the ones (28) which they are most confident. Meanwhile, deeper mental activities in the subconscious mind are taking (29) ; work is being done on the more difficult question. By the time the easier questions are answered, answers to the more difficult ones will usually begin to (30) into consciousness. It is often just a question of waiting for recall to come to the memory.21.

When

解析：

21．答案为B  根据句意，空格为“当……时”或“如果”。