The spatial study and memory of the rats in study group significantly decreased compared with that of control group.
与对照组相比，实验组大鼠空间学习和记忆能力明显下降。
About 5 to 7 percent of the male rats exposed to the highest level of radiation developed schwannomas in their hearts, compared with none in the control group.
受到最高强度辐射的雄鼠有大约5%至7%患上了心脏神经鞘瘤，而对照组中没有此类病例。
About 2 to 3 percent of the male rats exposed to the radiation developed malignant gliomas, a brain cancer, compared with none in a control group that was not exposed to radiation.
约2%至3%受到辐射的雄鼠患上了恶性胶质瘤——它是一种脑部癌症——而没有受到辐射的对照组没有此类病例。
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