make verifiable correlations of cause and effect between zooplankton and phytoplankton numbers
invent laboratory techniques that would have allowed them to bypass their field research concerning grazer control
一眼扫过去就只有一个选项在讲证明,就是D中的verifiable。所以答案选D。很快解完此题。
【GRE阅读虚拟语气如何备考】相关文章:
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01