你可能喜欢
单项选择题
A.3个月
B.6个月
C.9个月
D.12个月
单项选择题
A.0.0363W/(mm·K)
B.0.0329W/(mm·K)
C.0.0328W/(mm·K)
D.0.0361W/(mm·K)
单项选择题
A.5
B.6
C.8
D.9
单项选择题
A.24h
B.16h
C.20h
D.12h
单项选择题
A.1级,0.001mm
B.0.5级,0.001mm
C.1级,0.01mm
D.0.5级,0.01mm
单项选择题
A.60±10%
B.60±5%
C.50±10%
D.50±5%
单项选择题
A.22±2℃
B.23±2℃
C.22±5℃
D.23±5℃