argu23

A recent sales study indicated that consumption of seafood dishes in Bay City restaurants has increased by 30 percent over the past five years. Yet there are no currently operating city restaurants that specialize in seafood. Moreover, the majority of families in Bay City are two-income families, and a nationwide study has shown that such families eat significantly fewer home-cooked meals than they did a decade ago but at the same time express more concern about eating healthily. Therefore, a new Bay City restaurant specializing in seafood will be quite popular and profitable.
1.现在海鲜的消费量比五年强增加了30%，这样的调查并不能说明现在海鲜食品比以前更加流行。有可能海鲜消费量的增加只是因为人数的增加，而人均的消费量不变，甚至还下降了。现在还没有一家正式的海鲜店也许恰恰说明了这一点。

2.全国性的调查结果并不能代表B市的情况，有可能B市的双收入家庭更喜欢在家里吃饭而不是出去吃。

3.即便B市的双收入家庭喜欢出去吃健康食品，但是也不一定去吃海鲜，因为也许他们并不认为海鲜属于健康食品的种类。

4.即便B市的双收入家庭愿意去海鲜店吃海鲜，仍然不能说开海鲜店就一定会盈利。因为要考虑在B式开海鲜店的成本问题，例如运费，货源等等因素。