According to the passage, the focus of young college students concerns about health is mainly on
A. their present health condition.
B. their future health.
C. how to take care of themselves after retirement.
D. how long they are going to live.
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Whats the necessary part of a Halloween party?
A. Scary stories.
B. Fairy tales.
C. Jokes.
D. Lectures.
According to Verity, why is the toothpaste never green?
A. Because green products are regarded to be a bit disgusting.
Because green products are hard to be recognized.
C. Because green products are not respected by most people.
D. Because green products are not designed by color industries.
Write a note of about 50—60 words based on the following situation: Professor David who just gave you lectures for the past semester asks you to write a feedback, commenting on the course given together with some suggestions as to how to make it better. Write a letter and provide your suggestions in it. Marks will be awarded for content, organization, language and appropriateness.
增生是指细胞数目的增多同时伴有细胞体积的增大。()