现行教材de3138501b38a8da1943d10bd40b9199a1e03f581761171a36b757a22eebbdb4中出现了cb1e9bec85fae97232ded2a25fbf5e29878a0f2a18b5f504859178721d7d4336度量平面上两点远近的几种距离