A.50
B.70.7
C.100
D.150
A.50
B.70.7
C.100
D.150
A.保证试验结果的可比性
B.减少试验成本
C.保证试验结果的一致性
D.提高试验效率
A.100
B.150
C.200
D.240
A.3
B.7
C.14
D.28
A.50mm
B.100mm
C.70.7mm
D.150mm
A.100mm
B.125mm
C.150mm
D.200mm
A.70.7×70.7×70.7
B.100×100×100
C.150×150×150
D.200×200×200
A.31.5
B.36.0
C.36.3
D.41.5
A.50
B.60
C.70
D.80