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3月2日晚间，艾迪药业公告拟向特定对象发行A股股票，募集资金总额不超过12.77亿元，用于新型HIV整合酶抑制剂（INSTI）全球临床开发项目、收购控股子公司南大药业股权以及补充流动资金 。在业绩承压与资金紧绷的双重困境下，这场融资无疑成为关乎企业命运的一次战略突围。
Definition 1 A covering space of a topological space \(X\) is a topological space \(C\) together with a continuous surjective map \(p: C \to X\) such that for every point \(x \in X\), there exists an open neighborhood \(U\) of \(x\) such that \(p^{-1}(U) \cong F \times U\) for some discrete set \(F\) (called the fiber over \(x\)), and the map \(p\) restricted to each component of \(p^{-1}(U)\) is a homeomorphism onto \(U\).