2015年职称英语考试卫生类补全短文模拟练习题（3）(2)

7.D 选D DE 依据是第三段的最后一句，即"He took Washoe to a research center in Ellensburg,Washington.There,Washoe taught sign language to three younger chimpanzees,which are still alive.”

8.E 本文第二段谈到试验的成果时有一个句子："She could request foods like apples and bananas"。根据全段意思和上述句子，选择E是正确的。