应该是C。大家要仔细看题: A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______. A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers(无关) B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids (与other amino acids无关) C: others of the closely related group of plants are also found to produce histidine in large quantities。(两个原文中要点都提到--有关系的植物 大量的histidine) D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic (entended period, suitable for plants无关,尤其是plants指代了所有的植物,其实是无关) E: the concentration of histidine in the growing herb declines as the plant approaches maturity(maturity,无关,原文中未提及)。 所以这么看,肯定是C 最“相关”并有support的功能。我个人认为逻辑题做到最后,其实最关键的是1理解题意 2辨别有关无关。如果纯粹凭我们聪明的脑袋来绕逻辑关系,其实大部分选项都可以绕出所谓“合理”解答。所以记住在GMAT里面最关键的方法就是“相关”而不是其他的。 |