A.3% B.4% C.5% D.6%
A.95% B.96% C.97% D.98%
A.穎殼、果皮、種皮、糊粉層、胚乳、胚 B.穎殼、種皮、果皮、糊粉層、胚乳、胚 C.穎殼、果皮、種皮、胚乳、胚、糊粉層 D.穎殼、果皮、種皮、糊粉層、胚、胚乳