1. Consider the statement: “Earth moves in a stable orbit around the Sun and is therefore in equilibrium”. The statement is:
A. false, because no moving body can be in equilibrium
B. true, because Earth does not fall into or fly away from the Sun
C. false, because Earth is rotating on its axis and no rotating body can be in equilibrium
D. false, because Earth has a considerable acceleration
E. true, because if it were not in equilibrium then buildings and structures would not be stable
考虑以下语句：“移动地球围绕太阳一个稳定的轨道，因此处于平衡状态”。该语句是：
假的，因为没有移动身体能处于平衡状态
真实的，因为地球不属于或飞离太阳
假的，因为地球绕其轴旋转，不旋转体可在平衡
假的，因为地球有一个相当大的加速度
真实的，因为如果不是处于平衡状态，然后建筑物及构筑物不会是稳定的