90、 Surveys have shown that in up to 40 percent of elderly people living independently in affluent countries, the consumption of one or more essential nutrients is insufficient or they have deficient levels of these nutrients in their blood.
　　(A) in up to 40 percent of elderly people living independently in affluent countries, the consumption of one or more essential nutrients is insufficient or they have
　　(B) in up to 40 percent of elderly people who live independently in affluent countries, they consume one or more essential nutrients insufficiently or have
　　(C) in up to 40 percent of elderly people who live independently in affluent countries, one or more essential nutrients are consumed insufficiently or having
　　(D) up to 40 percent of elderly people living independently in affluent countries who consume insufficient amounts of one or more essential nutrients or who have
　　(E) up to 40 percent of elderly people who live independently in affluent countries consume insufficient amounts of one or more essential nutrients or have
　　原文意思： 调查显示在某些特定人群里， 消费一种或多种营养物质是不足的或者这些人在学液中缺乏这种营养物质
　　题目分析： A 读完后半部分意思乱七八糟的，干掉。B 意思合理，并且 they 指代的就是前面提到过的 elderly people，留着。C 把 are consumed 和 having 进行并列，不对应，干掉。D 没谓语， 干掉。E 意思也合理并且 consume 和 have 进行并列，非常对应，留着。B 和 E 进行比较，意 思一样，B 中的那个 they 就很多余了，选 E。