栓焊梁高强度螺栓检查,如发现个别螺栓头或螺母周围漆膜开裂脱落或流锈水,即表明该螺栓严重欠拧、漏拧或出现()。
A.裂纹
B.超拧
C.滑脱
D.流锈
参考答案:A
fclose(fp);
()is the 4th layer of the OSI reference model responsible for reliable network communication between end nodes.
A.Data link layer
B. Session layer
C. Transport layer
D. Application layer