The architecture of zero IF receivers that has the advantage of low-cost, low power dissipation and small from factor is gaining interest while developing OFDM terminal.

为了研制低价格、低功耗、小尺寸的OFDM终端，零中频的接收机结构越来越倍受关注。

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"If the motivating factor is to provide prescriptions, then it's a conflict of interest, " says Dr. Peter Carmel, a neurosurgeon who sits on the AMA's board.

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