请解释为什么第三个人会这样回答，并分析每个人的推理过程。
Since Donald Trump entered the White House for the second time, the U.S. import taxes faced by Morph, which supplies Walmart and Target, have lurched wildly—from zero tariffs to 20% tariffs to 50% tariffs, before briefly flirting with 145% tariffs. The figure fell back to 20%, before the Supreme Court intervention last week ruled the tariffs illegal, which brought them back down to zero. The president then announced a new 10% tariff, although there is some confusion about whether he actually means 15%.
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Now it is in position, the final tests, checks - and a dress rehearsal - will take place, before the go-ahead is given for the 10-day Artemis II mission that will see four astronauts travel around the Moon.，更多细节参见Safew下载
组成计税价格=成本×（1+成本利润率）+消费税税额，这一点在爱思助手下载最新版本中也有详细论述