您在制作 Google 视频广告系列，并将“品牌认知度和覆盖面”设为广告系列目标。 为什么“目标每千次展示费用”(tCPM) 是最佳出价策略？

Target CPM (tCPM) is the optimal bidding strategy for a "Brand awareness and reach" campaign goal because its primary objective is to maximize the number of relevant impressions within your budget. By optimizing bids to show your ad content to as many relevant users as possible, tCPM directly supports the goal of increasing brand awareness and expanding reach. The other options are incorrect because: "争取尽可能多的点击" (maximizing clicks) describes a strategy like Maximize Clicks, which focuses on engagement, not reach. "分析历史反馈，并根据效果信号对出价进行调整" (analyzing historical feedback and adjusting bids based on performance signals) describes automated bidding in general, but not specifically tCPM's goal-oriented optimization for reach. "根据目标每次转化费用尽可能多地增加展示次数" (maximizing impressions based on a target CPA) describes Target CPA, which prioritizes conversions, not brand awareness and reach.