把3.14的小数点向左移动两位后是______，小数______到原数的______；如果把3.14小数点向______移动两位，小数扩大到原数的______．

Travelling, talking with friends and relatives, and other forms of relaxation are very likely to _______ the well-being of metal health.

A．contribute to

B．blow up

C．put up

D．carry on