搜搜考试网求解一道GRE数学题.困扰很久了还是不懂
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求解一道GRE数学题.困扰很久了还是不懂
第17题说 the two corporate sectors that increased their support for the arts from 1988 to 1991 made a total contribution in 1991 of approximately how many million dollars?
A.112 B.125 C.200 D.250 E.315
一直不知道为什么选D,求问这题到底什么意思.为什么我看到一个hint是520*（0.26+0.22）,不懂==
第17题说 the two corporate sectors that increased their support for the arts from 1988 to 1991 made a total contribution in 1991 of approximately how many million dollars?
A.112 B.125 C.200 D.250 E.315
一直不知道为什么选D,求问这题到底什么意思.为什么我看到一个hint是520*（0.26+0.22）,不懂==
为了凑答案,可不可以这样理解,1988-1991增长的只有前两项,这两项在1991年的总和是520×（0.26+0.22）=249.6≈250
当然其实就是上面的理解.句子的意思是,1988-1991增加对arts投资的两个sectors在1991年的总contribution大概是多少dollars?
分析句子成分.主句是主谓宾结构,the two corporate sectors made a contribution. that引导的定语从句限定修饰sectors,从句是主谓宾结构.approximately副词短语作补语.
当然其实就是上面的理解.句子的意思是,1988-1991增加对arts投资的两个sectors在1991年的总contribution大概是多少dollars?
分析句子成分.主句是主谓宾结构,the two corporate sectors made a contribution. that引导的定语从句限定修饰sectors,从句是主谓宾结构.approximately副词短语作补语.