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货真价实,看货定价是良性购物的准则。然而在美国,支付了相同的费用进行成像扫描,却因为种种因素,检测结果存在巨大差异。
Genuine, look at the price of goods is a benign shopping guide. In the United States, however, the same cost is paid for imaging scans, but there are vast variations in test results due to a variety of factors.