Article 69 of the Patent Law stipulates that any of the following circumstances shall not be regarded as infringement of the patent right: ① The patented product or the product directly obtained according to the patented method is used, promised to be used, sold or sold after import by the patentee or its authorized unit or individual; Therefore, item B is correct. (2) Having manufactured the same product, used the same method or made necessary preparations for its manufacture and use before the patent application date, and continuing to manufacture and use it only within the original scope; (3) Foreign means of transport passing through the territory, territorial sea and airspace of China temporarily use the relevant patents in their devices and equipment for their own needs in accordance with the agreement signed between their countries and China or the international treaties to which * * * is a party, or in accordance with the principle of reciprocity; (four) the relevant patents are used exclusively for scientific research and experiments; Therefore, item C is correct. (5) manufacturing, using or importing patented drugs or patented medical devices for the purpose of providing information required for administrative examination and approval, or manufacturing or importing patented drugs or patented medical devices exclusively for them. Therefore, item D is correct.