本题目来源于试卷: IB ESS Unit 1 Foundations of ESS，类别为 IB环境系统与社会
[单选题]
A model is a simplified version of realil, hcv -it2mi/ty used to help peop (i5fj 7cm0vtwmjc.d trjfl)z5/)0c hle understand complex wo m) jzt c57.hwcjf05f(tjlm)dc0vr i/rkings.
Identify which items on the following list could best be described as models.
I. The human body
II. An office building
III. The atom
IV. The solar system
A. I and II
B. III and IV
C. II and IV
D. All are models.
参考答案: B
本题详细解析:
The model of the atom is used to explain the smallest piece oa2 3,*zaqwsnuf matter since we cannot actually see them but only detect their properties. The model of the solar system zasw*aq2 , 3nuis used to explain the Earth’s surroundings in space. Again, this is in part because we cannot see the solar system but only detect parts of it.
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