2. Overgenerous ratings of complex financial instruments based on mortgage prices were widely blamed as helping to set off the global financial crisis.
那些基于抵押贷款价格的复杂金融工具获得了过分高的评级，被广泛指责为引爆全球金融危机的原因之一。
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3. Overgenerous ratings of complex financial instruments based on mortgage prices were widely blamed as helping to set off the global financial crisis.
