Colds can be avoided.A．RightB．WrongC．Not mentione

Oral problems can not be avoided in any way.A．RightB．WrongC．Not mentioned

With the evolution, human beings may sleep more.A．RightB．WrongC．Not mentioned

Globalization can be best understood as a way of doing business.A．RightB．WrongC．Not mentio

Smith died in 1800.A. RightB. WrongC. Not mention

A. RightB. WrongC. Not mentioned

Sleep can cure colds.A．RightB．WrongC．Not mentione