422、该规范的目的是为了将通用航空飞机所有者和运营人以及维修人员的成本降到最低。

　The objective of the specification is to minimize the cost to general aviation airplane owners and operators and maintenancepersonnel.

　The specification is designed to cut off the cost to general aviationairplane owners and operators and maintenance personnel.

　The target of the specification is to reduce the cost of general aviation airplane owners and operators and maintenancepersonnel;

答案解析

正确答案：A

解析：

解析:注释: minimize the cost 成本最下化。

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