生活中的下列物质,属于纯净物的是 请选择DCBA'[7A,L9o+R'r)O6o1Y1L-b3I+^8R'E1V8u6l.P7^(i7I1Z
A.天然气-b3I+^8R'E1V8u6l.P7^(i7I1Z
B.蒸馏水-b3I+^8R'E1V8u6l.P7^(i7I1Z
C.酸奶-b3I+^8R'E1V8u6l.P7^(i7I1Z
D.加碘食盐-b3I+^8R'E1V8u6l.P7^(i7I1Z