A.428.28 B.415.28 C.405.28 D.438.28
A.161.05 B.171.05 C.181.05 D.191.05
A.結(jié)構(gòu) B.結(jié)構(gòu)的質(zhì) C.結(jié)構(gòu)的量 D.結(jié)構(gòu)比例