When an art museum wants a new exhibit, it buys things in finished form and hangs them on its walls. When a natural history muse

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问题     When an art museum wants a new exhibit, it buys things in finished form and hangs them on its walls. When a natural history museum wants an exhibit, it often must build it realistically— from a mass of material and evidence brought together by careful research.
    An animal, for example, must first be skinned. Photographs and measurements are used to determine the animal’s structure in a natural position fighting, resting, or feeding. Then muscle forms are built and a plaster shell is made. Finally the skin is pulled over the shell like a wet glove. This completes the animal subject.
    Displaying such things as stone heads, giant trees, and meteorites (陨石,陨星) is basically mechanical. Most other natural history exhibits present more difficult problems. For instance how can a creature be exhibited when it is too small to be seen clearly? In these cases larger-than-life models are built. The American Museum of Natural History has models of fleas (跳蚤), houseflies and a myriad (无数的) of other insects enlarged up to seventy-four times. The models show the stages of the insects’ development and the workings of their bodies.
It is implied but not clearly mentioned in the passage that______.

选项 A、some creatures cannot be displayed
B、nothing in a natural history museum is alive
C、meteorites come from outer space
D、natural history exhibits often must be built

答案B

解析 本题是一道暗示推断题。问下面四个选项中哪个是文章中暗示出来而没有明确提到的。通读全文后我们可以推知本题的正确答案应是B“自然历史博物馆中的东西都不是活的”。选项A“一些生物无法展示”在文章中没有提到,也无法推断出来。C“陨石来自于外层空间”,文章中根本没有提到关于陨石的出处问题,所以也无法推断。D“自然历史类展品通常必须制作出来”,这个内容是文章中明确提到的。因此,这三个选项都是错误的。
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