单项选择题
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
单项选择题 The American Petroleum Institute recommends magnetic particle inspection for（）.
单项选择题 Temporary Certificates of Inspection for offshore drilling units are effective until the （）.
单项选择题 Spontaneous ignition can result from（）.
