868.If there are metal particles in the oil filter, examine the filter elements for wear( )

68.安全程序由制造商提供。( )

67.急拉氧气面罩来获取氧气。 ( )

68.因此,词组中的单词越多,理解起来就越困难 ( )

67.Ream the hole 020 inch larger than the standard ( )

66.Turn the cover until you can get access to the jacks that have + and - marks ( )

65.Move the cable strands apart ( )

64.Lifting and shoring part includes procedures covering maintenance , overhaul and repair removal and replacement, as well as abnormal conditions such as belly landing, nose landing

63.Regardless of method used, any publication conforming to the GAMA format will use the same basic numbering system( )

62.The metal has a layer of plastic on it to prevent corrosion( )

61.灰尘会污染所有的滤芯 ( )