判断题 商品产出是指搜索某关键词所对应的商品单位曝光产出，即该搜索关键词所对应的单位曝光量下商品所能成交的金额。
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商品标题的优劣关系到商品的搜索权重，影响商品的自然搜索流量，网店的活跃程度。
A. 对
B. 错
对日常销售款标题优化，应该以商品的核心词为基础进行关键词拓展。
A. 对
B. 错
Fill in the blanks with appropriate words.
A.under, in peace and harmony with
B. by, in peace and harmony of
C. with, under peace and harmony toward
D. under, in peace and harmony for
_________ we seem to have conquered nature. But we are wrong. Scientusts in fact now say that we should stop ________ nature before it is too late.
A. In the surface, tampering with
B. On the surface, tampering with
C. On surface, tampering against
D. In surface, interfering with
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