某物质在氧气中充分燃烧后生成物中含有二氧化碳,则下列说法中正确的是请选择DCBA4q3S)}*d)i-d5~:T/N7K0W5~8S)\7T1M9D3^0Y/|2k;x1C
A.该物质不可能是纯净物0W5~8S)\7T1M9D3^0Y/|2k;x1C
B.该物质一定含氧元素和碳元素0W5~8S)\7T1M9D3^0Y/|2k;x1C
C.该物质一定是碳的单质0W5~8S)\7T1M9D3^0Y/|2k;x1C
D.该物质中可能含有氧元素0W5~8S)\7T1M9D3^0Y/|2k;x1C