创伤的分类包括4个方面，如果按损伤类型分类可分为开放性损伤、危重伤、重伤、闭合性损伤。()

A. The pollution across the world is more and more serious.
B. Natural disasters in some countries are more frequent.
C. Global warming will cause serious problems on the earth.
D. Countries along the sea coast are stricken by heavy rain.

A. few
B. many
C. little
D. much

A. promotion doesn"t take training into account.
B. managers serve as a bad model for training.
C. it is more and more difficult to get a promotion.
D. game-based e-learning is the more updated trend.

A. probably work for e-learning companies.
B. probably work for video game companies.
C. are worried about the economy.
D. are concerned about e-training.