A.抗压强度 B.抗拉强度 C.抗弯强度 D.抗剪强度
A.485.44 B.497.00 C.475.44 D.477.12
A.656 B.632 C.660 D.566
A.0.44 B.0.56 C.0.65 D.0.70
A.1356 B.1366 C.1363 D.1336