Cleaners and farmers do ______scientists do.
A. the same work as
B. less important work than
C. more work than
D. as important work as
正确答案：D
47．答案为D此题为推断题从第三段中句子Wecanlivewithouteducationbutwedieifwehavenofood．和Ifnoonecleanedourstreetswewouldhaveterriblediseasesinourtowns．我们可以推断出清洁工农民和教授的工作同等重要
