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]
Identify which of the following is nq9fz,4rhu-p7b + ps/ dx)ajaiot true of a systemsl43)ysl yb ns7 diagram?
A. Storages and flows are shown as boxes and arrows.
B. Flows shown as arrows, indicate transfers that show a change in location.
C. Sizes of the boxes show magnitudes of the flows of matter.
D. Flows shown as arrows, indicate transformations that show a change in state.
参考答案: C
本题详细解析:
Boxes show magnitudes of storages of matter. Boxes are us;tsbiumh :s4afb0 ;*s :cnqa,ed in systems diagrams to show storages. Flows are shown as arrows in systems dis,s0:c4uin*abq mh ; b:sf at;agrams (Option A).
Options B and D are both flows shown as arrows to indicate transfers and transformations of matter in a systems diagram.
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