答案:A
統計:A:51,B:2,C:4,D:1,E:0
難度:非常簡單
【anlulu】評論
However, wherever it is deployed, there is no guarantee that appropriate technology will in fact be appropriate. After some visiting engineers observed how labor-intensive and slow it was for the women of a Guatemalan village to shell corn by hand, they designed a simple mechanical device to do the job more quickly. The new device certainly saved time, but after a few weeks the women returned to the old manual method. Why? Because they valued the time that hand-shelling gave them to chat and exchange news.