可不进行接头弯曲试验的焊接种类为（）
A.闪光对焊
B.气压焊
C.电阻点焊
D.电渣压力焊
参考答案：C, D
He was admitted to a famous university，________ was obvious that his situation had gone beyond his parents’ expectations.
A．what
B．it
C．as
D．and it
现场措施执行完毕后，登记在（）记录本中。
A.点检票
B.操作票
C.工作票
D.抢修票
