大全secD-6

6.     The main reasons for the phenomenal growth of agribusiness over the last fifteen years are because of elevated land prices, the basing of retail marketing networks on produce imported from other states, and decreased competition from developers.

(A) because of elevated land prices, the basing of retail marketing networks

(B) a result of elevated land prices, retail marketing networks based

(C) that land prices are elevated, retail marketing networks are based

(D) elevated land prices, retail marketing networks based（D）

(E) because land prices are elevated, the basing of retail marketing networks

我觉得c更好一些。the main reasons are that ......

这题考的主要是平行结构: the phenomenal growth of agribusiness 与elevated land prices ,retail marketing networks,decreased competition 平行.OG上有类似的题目.

C的错误主要有两点:一,是不平行对称;二是,that land prices are elevated, (and) retail marketing networks are based之间须加连词and.

retail marketing networks based on produce imported from other states, and decreased competition from developers这里做表语.