GMAT逻辑题练习及答案(444)

2017-11-17 09:46

来源：新东方在线

作者：

　　Sometimes when their trainer gives the handsignal for “Do something creative together” two dolphins circle a pool intandem and then leap through the air simultaneously. On the other occasions,the same signal elicits synchronized backward swims or tail-waving. Thesebehaviors are not simply learned responses to a given stimulus. Rather,dolphins are capable of higher cognitive functions that may include the use oflanguage and forethought.

　　Which one of the following, if true, moststrengthens the argument?

　　A. Mammals have someresemblance to one another with respect to bodily function and brain structure.

　　B. The dolphinsoften exhibit complex new responses to the hand signal.

　　C. The dolphinsare given food incentives as part of their training.

　　D. Dolphins do not interactwith humans the way they interact with one another.

　　E. Some of thebehaviors mentioned are exhibited by dolphins in their natural habitat

　　答案

　　思路：直接提出另一个事实，若此事实际能够说明结论成立的，则此事实为答案。

　　A. 没有提及cognitive functions，对结论无关。

　　B. 选项中的“new responses”，说明了dolphins能够经过思考，再作出一个新的反映，而不是单单的作出learnedresponses to a given stimulus. 此选项支持了结论中的cognitive functions，是答案。

　　C. 无关。

　　D. interact的方式不一定与cognition有关，也可能会与learned responses或条件反射有关。