= Solution
Let $\Omega^p$ be the sheaf of holomorphic $p$-forms and $\mathcal A^{p,q}$ the sheaf of smooth $(p,q)$-forms. The <Dolbeault-Poincaré lemma> makes
$$
0\longrightarrow\Omega^p\longrightarrow\mathcal A^{p,0}\xrightarrow{\bar\partial}\mathcal A^{p,1}\xrightarrow{\bar\partial}\cdots
$$
an exact resolution by <fine sheaves>, which are acyclic for <global sections>. Its global cochain complex computes <Dolbeault cohomology>, proving the <Dolbeault theorem>
$$
\boxed{H^q(X,\Omega^p)\cong H_{\bar\partial}^{p,q}(X).}
$$
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