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 rw2 0r0 fq .t7xhb k-o i0wks3jjw2v1rleality used to help peo4z cla256fpl 6pxpif 3ple understand complex worki5x 4ip2l pf a6l6zcp3fngs.
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 of matter si .82r hywahs9wnce we cannot actually see them but only detect their propertiesh9w82.ah sw ry. The model of the solar system is 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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