So experimenters vary their repertoire of questions to make sure that Alex is responding to the content of the question and making intelligent discriminations.
因此实验者们不断变换问题，以确保亚历克斯是在对问题的内容进行回应和做出智能化的区别。
2
Due to various discriminations in an urban society, peasant migrants have difficulties in both communications and interpersonal relationships with urban residents.
由于城市社会中存在着各种歧视，农民工与城市居民之间人际传播与人际交流都十分困难。
3
Director of the Labour law committee under the all China Lawyers Association Jiang Junlu said the lack of related laws and regulations was at the root of all discriminations.