无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項選擇題

The American Petroleum Institute recommends that connecting links and anchor shackles be inspected using().

A.visual examinations
B.magnetic particle inspection
C.dye penetrant inspection
D.x-ray inspection

微信掃碼免費搜題