Zeta ursa majoris , which consists of two physically unrelated stars , mizar and alcor . they do not have much physical significance ，例子有下台二大熊座，这种双星没有任何物理上的重要性。
2.
Alcor micro corp . , an otc approved listing company ( 8054 ) is an equal opportunity employer , offers competitive salaries as well as an excellent benefits packag 安国国际科技股份有限公司为一股票上柜公司( 8054 ) ,并提供每一位员工一个公平的竞争环境,优渥的薪资与福利制度
