---It won’t take long to clean our school if all the students are willing to help.

---Yes, I think so. ________.

A．Too many cooks spoil the broth

B．Don’t put all your eggs in one basket

C．Many hands make light work

D．Every dog has its day

地球绕太阳运行的轨道半长轴为1.50×10¹¹ m，周期为365天；月球绕地球运行的轨道半长轴为3.8×10⁸ m，周期为27.3天；则对于绕太阳运动的行星