Question

Researchers are trying to________ what's wrong with their experiments.

A.pullout
B.callout
C.takeout
D.figureout

Answer 1

【答案】：D
句意：研究人员正试图找出他们实验中存在的问题。pull out意为“退出；（火车）驶出”，call out意为“唤起，召集”，take out意为“取出，除去”，figure out意为“弄清楚”，故选D。