[解析]
(1)A 细节理解题.根据医生的话The doctor said Jayson should first learn to get full use out of the hand he was born with.Jayson应该先学会充分利用他天生的手,所以答案选A.
(2)C 细节理解题.根据句子Jayson's school had recently purchased a 3 D printer and it offered to help Paul build the hand for Jayson,Jayson的学校拥有3 D打印机,它帮助Jayson的爸爸Paul为Jayson建了一个假手,所以答案选C.
(3)D 细节题.根据文章内容his father looked into buying a prosthetic hand,which can cost as much as 30,000.Paul found a more affordable solution…They told him all he needed was a 3 D printer﹣which costs around 2,000﹣and some materials.买假肢要花费3000多,而3 D打印机只需要2000多,相比较而言,3 D打印的手是经济又实惠的,故选D
(4)C 主旨大意题.本文主要写了Jayson天生左手没有手指头,为了帮助孩子他爸爸用3 D打印机为孩子建了假肢.所以答案选C.