公称厚度1.00~1.20mm,最小屈服强度<280MPa,板宽≤1200的钢板厚度允许偏差是()mm。
A.±0.07
B.±0.08
C.±0.09
D.±0.10
参考答案:B
-I've some big news for you. You've been accepted as a member of our club.
-_________That's great! [ ]
A. Have I?
B. Pardon?
C. Congratulations !
D. Good idea !
能够消除网络拥挤,具有流量控制和拥挤控制的能力的是______。
A.物理层 B.数据链路层C.网络层 D.传输层