单项选择题
A．stored up by the plants B．absorbed by the earth’ s atmosphere C．stored up by the animals in the form of body fat D．used for electric power
A．universities in the UK have produced too much good for graduates B．such abstract subjects as philosophy is no longer useful C．education should serve the social needs D．it is advisable for today’ s philosophers to know computer science
A．They feared competition from American writers. B．They did not expect the United States to produce good writers. C．They disapproved of the language American writers used. D．They thought of the United States as a purely commercial power.