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求助!!!!!!!!!!!!!GWD1-Q7: A recent review of pay scales indicates that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times in 1980. C
A. that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times B. that, on average, CEO’s now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times C. that, on average, CEO’s now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio D. CEO’s who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio E. CEO’s now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times 感觉答案句子的结构很有问题,为什么要有's在CEO之后呢? GWD1-Q32: To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility. D
A. have to know a great deal more than now about the social and economic B. have to know a great deal more than they do now about the social and economical C. would have to know a great deal more than they do now about the social and economical D. would have to know a great deal more than they do now about the social and economic E. would have to know a great deal more than now about the social and economical 这里为什么要选用would have这样的虚拟语气呢?A为什么不可以? 谢谢各位大N了!!!! GWD1-Q7: A recent review of pay scales indicates that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times in 1980. C
A. that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times B. that, on average, CEO’s now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times C. that, on average, CEO’s now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio D. CEO’s who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio E. CEO’s now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times 感觉答案句子的结构很有问题,为什么要有's在CEO之后呢? GWD1-Q32: To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility. D
A. have to know a great deal more than now about the social and economic B. have to know a great deal more than they do now about the social and economical C. would have to know a great deal more than they do now about the social and economical D. would have to know a great deal more than they do now about the social and economic E. would have to know a great deal more than now about the social and economical 这里为什么要选用would have这样的虚拟语气呢?A为什么不可以? 谢谢各位大N了!!!!
GWD1-Q12: The author mentions the “aftermath of the Mount Saint Helens eruption” most likely in order to A. provide an example of the process that allows the repopulation of rivers whose indigenous salmon population has become extinct B. indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere C. provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured D. show how salmons’ homing instinct can be impaired as a result of severe environmental degradation of their natal streams E. show why straying rates in salmon populations remain generally low except when spawning streams suffer severe environmental disturbance 文章中有句话是 Although no one has quantified changes in the rate of straying as a result of the disturbances caused by humans, there is no reason to suspect that the effect would be qualitatively different than what was seen in the aftermath of the Mount Saint Helens eruption.感觉意思是人为影响和自然灾害有质的区别,为什么答案又是C呢? | 
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发表于 2009-8-7 05:17:00
