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参照物及其选择

> 许多城市的百货大楼都有观光电梯，乘客在乘电梯竖直向上升的过程中，下列分析正确的是 A.以地面为参照物，电梯是静止的 B.以乘客为参照物，地面时静止的 C.以地面为参照物，乘客是静止的 D.以电梯为参照物，乘客是静止的

问题：

发布时间：2020-03-13

许多城市的百货大楼都有观光电梯，乘客在乘电梯竖直向上升的过程中，下列分析正确的是

A.以地面为参照物，电梯是静止的
B.以乘客为参照物，地面时静止的
C.以地面为参照物，乘客是静止的
D.以电梯为参照物，乘客是静止的

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