【单选题】
Doctors should ( )prevention of diseases rather than cure.
【单选题】
The ( )to her success is her confidence and persistence.
【单选题】
He found it hard to ( ) his studies in such a noisy environment.
【单选题】
The research findings indicate that human ( ) develops rapidly in childhood.
【单选题】
What shall I ( ) to qualify for the job?
【单选题】
She had made many ( ) into the quality of the computer before buying one.
【单选题】
Tony is such a nice guy. He will not ( ) a moment to offer help when you are in trouble.
【单选题】
As a freshman, we should get to know campus ( ) as soon as possible and make good use of them.
【单选题】
I think you should ( ) your viewpoint on such an occasion.
【单选题】
Take out accident( )before you travel.