填空题 The aim of the psychological tests administered by many scientists is 1.
  • 1、
【正确答案】 1、to pinpoint the motives    
【答案解析】文章第三自然段第二句... that many scientists are ready to abandon the attempt to pinpoint motives．说要放弃此种努力，即其初衷是要弄清参加体育运动的动因。