当摩根大通收购华盛顿互助银行时，它同时购入了一定份额的抵押贷款，包括可选择浮动利率抵押贷款。

When JPMorgan acquired Washington Mutual and EMC, it also acquired portfolios of mortgages that included option adjustable-rate mortgages.

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可能有一定的方低息抵押贷款利率。

There may be one down side to the low interest mortgage rates loans.

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