石榴石的折射率范围很大，但其最低不会低于（） A: 1.718 B: 1.700 C: 1.714 D: 1

石榴石的折射率范围很大，但其最低不会低于（）。 A: 1.718 B: 1.700 C: 1.714 D: 1.707

设[tex=17.071x1.5]laEzR1IUAbB3F6co2ymLhcwawHQCmqOismC1Dk/OFVIn9tij/XwfbhzPPlJzpWAPAWi60Vox+h7BRBoTErXEQ8RcBOf6zH6IGsxhjRLbask=[/tex][tex=12.429x1.714]hwQn/2w7Mu7z/sFWKc0CWIzwvvY3YCLdXbmvDALGru9+mkp9NcMeZ/8F1ZFWbgiGVNaNh9nEAHX3YAM1jPU3IqYwVrUzm92LYpij4PbHGJljQOpuaFDinbIuP++z7SZp[/tex][tex=15.357x1.357]HlaF5Oa5dZqdjYGIikfxTAKD3KTvqu/sRSo9iOmXMf23soqhawF8Do9pToZnevI0krcGAgj5jMV3UItBQBN9jsB6eASK7+GUfiFWvHd2IIsB8dBEk/FiHNFZRd9cQi4L6Z739OhxZuSS7SOnOLtO8w==[/tex]求[tex=2.786x1.429]3UrC7vzmKGFkdUINuLITCfJp1nyIish45C6P8iFWw9N+DjoiTZpVVaDC61ylykKW[/tex]

设[tex=17.071x1.5]laEzR1IUAbB3F6co2ymLhcwawHQCmqOismC1Dk/OFVIn9tij/XwfbhzPPlJzpWAPAWi60Vox+h7BRBoTErXEQ8RcBOf6zH6IGsxhjRLbask=[/tex][tex=12.429x1.714]hwQn/2w7Mu7z/sFWKc0CWIzwvvY3YCLdXbmvDALGru9+mkp9NcMeZ/8F1ZFWbgiGVNaNh9nEAHX3YAM1jPU3IqYwVrUzm92LYpij4PbHGJljQOpuaFDinbIuP++z7SZp[/tex][tex=15.357x1.357]HlaF5Oa5dZqdjYGIikfxTAKD3KTvqu/sRSo9iOmXMf23soqhawF8Do9pToZnevI0krcGAgj5jMV3UItBQBN9jsB6eASK7+GUfiFWvHd2IIsB8dBEk/FiHNFZRd9cQi4L6Z739OhxZuSS7SOnOLtO8w==[/tex]求[tex=2.786x1.429]3UrC7vzmKGFkdUINuLITCfJp1nyIish45C6P8iFWw9N+DjoiTZpVVaDC61ylykKW[/tex]

设[tex=17.071x1.5]laEzR1IUAbB3F6co2ymLhcwawHQCmqOismC1Dk/OFVIn9tij/XwfbhzPPlJzpWAPAWi60Vox+h7BRBoTErXEQ8RcBOf6zH6IGsxhjRLbask=[/tex][tex=12.429x1.714]hwQn/2w7Mu7z/sFWKc0CWIzwvvY3YCLdXbmvDALGru9+mkp9NcMeZ/8F1ZFWbgiGVNaNh9nEAHX3YAM1jPU3IqYwVrUzm92LYpij4PbHGJljQOpuaFDinbIuP++z7SZp[/tex][tex=15.357x1.357]HlaF5Oa5dZqdjYGIikfxTAKD3KTvqu/sRSo9iOmXMf23soqhawF8Do9pToZnevI0krcGAgj5jMV3UItBQBN9jsB6eASK7+GUfiFWvHd2IIsB8dBEk/FiHNFZRd9cQi4L6Z739OhxZuSS7SOnOLtO8w==[/tex]求[tex=2.571x1.429]lnhDw3fui76G1fgs6EWlcyzORmh3al9CevUR1NN31SqQGw/UGNXWAK5XmscSQMpf[/tex]

设[tex=17.071x1.5]laEzR1IUAbB3F6co2ymLhcwawHQCmqOismC1Dk/OFVIn9tij/XwfbhzPPlJzpWAPAWi60Vox+h7BRBoTErXEQ8RcBOf6zH6IGsxhjRLbask=[/tex][tex=12.429x1.714]hwQn/2w7Mu7z/sFWKc0CWIzwvvY3YCLdXbmvDALGru9+mkp9NcMeZ/8F1ZFWbgiGVNaNh9nEAHX3YAM1jPU3IqYwVrUzm92LYpij4PbHGJljQOpuaFDinbIuP++z7SZp[/tex][tex=15.357x1.357]HlaF5Oa5dZqdjYGIikfxTAKD3KTvqu/sRSo9iOmXMf23soqhawF8Do9pToZnevI0krcGAgj5jMV3UItBQBN9jsB6eASK7+GUfiFWvHd2IIsB8dBEk/FiHNFZRd9cQi4L6Z739OhxZuSS7SOnOLtO8w==[/tex]求[tex=2.571x1.429]lnhDw3fui76G1fgs6EWlcyzORmh3al9CevUR1NN31SqQGw/UGNXWAK5XmscSQMpf[/tex]

设[tex=17.071x1.5]laEzR1IUAbB3F6co2ymLhcwawHQCmqOismC1Dk/OFVIn9tij/XwfbhzPPlJzpWAPAWi60Vox+h7BRBoTErXEQ8RcBOf6zH6IGsxhjRLbask=[/tex][tex=12.429x1.714]hwQn/2w7Mu7z/sFWKc0CWIzwvvY3YCLdXbmvDALGru9+mkp9NcMeZ/8F1ZFWbgiGVNaNh9nEAHX3YAM1jPU3IqYwVrUzm92LYpij4PbHGJljQOpuaFDinbIuP++z7SZp[/tex][tex=15.286x1.357]Ez2JsBPRhydQCEb9iUCqZPejMJxZvCScrzVWHWyNHUW/lv7SQn4kCj7gzFNP/w1nWBZK6SdGoxhZAFHQoY8rYU/flvJQ3YXfTo4ju/YTpL9uqOL+jkUgB0FHvvBY7k7W[/tex]求[tex=2.5x1.429]Aozx/4t87c5eR2ECdJqD6l7D1oK6XZJ/IQZAvd+tp18=[/tex]

证明：如果一个三次多项式[tex=6.214x1.357]M0KzsqQPrlr25YikypjmiMj+5GQpq8E9MCIEdcYO6q4=[/tex]的一个根的平方等于其余两个根的平方和，那么这个多项式的系数满足以下关系：[tex=12.429x1.714]aUQDOFljEQbNqHuyGmF1rTnfT6V2bq0JSMNcv9SRfn3Se4+In9CpbdM2kOIoAIGoYxf58vww2cf4kRb5hx6UMA==[/tex]

下列变量组（）是一个闭回路。 A: {x，x，x，x，x，x} B: {x，x，x，x，x} C: {x，x，x，x，x，x} D: {x，x，x，x，x，x}

以下谓词蕴含式正确的是（）: (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)