单项选择题
The American Petroleum Institute recommends magnetic particle inspection for（）.
A.anchor chain B.wire rope C.connecting links D.pendant wires
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（）.
单项选择题 Records of tests and inspections of a cargo vessel’s fire extinguishing systems shall be kept on board（）.
