Geographic areas can be characterized as having high, intermediate or low levels of hav infection.
甲型肝炎感染率可能具有高、中、低不同的地域特征。
Company currently employs 31 people, with high, intermediate technical title of the technical staff and management personnel 12 people.
公司现有员工31人,拥有高、中级技术职称的技术人员及管理人员12人。
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