卡西欧FX-991CN X中文版函数科学计算器

评测依据

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• intros：{"brand_intro":"卡西欧（CASIO）创立于1946年日本东京，是全球知名的电子仪器与计算器制造商。其科学计算器系列以高精度、多功能和耐用性著称，长期占据中国考试计算器市场主导地位，是高考、考研、注册工程师等国家级考试的指定或推荐品牌。","product_intro":"FX-991CN X是卡西欧专为中国教育市场打造的中文菜单旗舰型号，拥有498种计算功能，支持矩阵、向量、复数、方程求解、微积分、统计回归等高级运算。配备高清点阵液晶屏，采用太阳能+纽扣电池双电源供电，符合全国多省市中考、高考及大学考试入场要求。","key_specs":["显示类型：点阵液晶，192×63像素","功能数量：498种","电源方式：太阳能+纽扣电池LR44","适用考试：中考/高考/考研/注册工程师","菜单语言：简体中文","尺寸：约165.5×77×13.8mm"]}
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