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 the diagram that is not a c bvxa0+j.f ;gyo u p7txuco7 k068vt*gkrrectly drawn systems
 
A. image A
B. image B
C. image C
D. image D
参考答案: C
本题详细解析:
Flows in a systems diagram are shown using arrows.
Option A shows a correctly drawn systems diagram because the direction of the arrows does not have to be left to right; it simply needs to follow the flow of the matter or energy as it goes through the system.
Option B shows a correctly drawn systems diagram. Arrows and boxes need not be the same size. They are often different in size in order to indicate the size of the flow or storage.
Option D shows a correctly drawn systems diagram, although it is a very simple one with only one storage. Arrows can go in all directions as long as they follow the flow of matter or energy through the system.
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