正确答案: D

成套更换或尺寸选配法

题目：燃油系统中的针阀偶件使用性能丧失可以采用( )去修复。

解析：D

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举一反三的答案和解析：

[单选题]They should ________ taken great care of.

be

[单选题]喷油器针阀座因磨损而下沉时对喷油器工作的影响是( )。

雾化不良

[单选题]The three basic components of a fire are chain reaction, heat, fuel, and ____.

oxygen

[单选题]When the refrigeration demand is small,_______.

the expansion valve will move toward the closing position