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 statement about a sys+a0 x7+ lrzmy 52; ytc(fwobptt4 *dhwad o00 nqhqpqr62g;5vfems diagram that is true.
A. Storages are drawn as rectangles.
B. Flows are shown with lines.
C. Flows show the movement of matter only.
D. The size of the rectangles does not matter.
参考答案: A
本题详细解析:
Storages are shown as rectangles, often with the name of the storage written4 5y5crb(bhzgmx;f b 0 in it bgm(0r;z5x fb y45bhc.
Option B is incorrect, as flows are shown with arrows which show where the flow goes to.
Option C is incorrect, as flows may show the movement of energy or matter.
Option D is incorrect, as the size of the rectangles may show how big the storage is. The size of the arrow may also indicate the size of the flows.
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