单项选择题
A．can be predicted at birth B．stays the same throughout his life C．can be increased by education D．is determined by his childhood
A．so B．as C．and D．but
A．a letter to the editor B．a comment on a novel C．an introduction to a dictionary D．a news-report in the newspaper
A．bill B．accounts C．fees D．fare
A．individual with identical brains seldom test at same level B．an individual"s intelligence is determined only by his environment C．lack of opportunity blocks the growth of intelligence D．changes of environment produce changes in the structure of the brain
A．make them easier to understand B．provide more useful words C．introduce more contexts D．include more examples
A．there are still some problems to work out B．there will be competition to get popular addresses C．companies are willing to change their web addresses D．the change will affect the use of the Internet greatly