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【单选题】
活塞环安装时如天地间隙不足将会产生的后果是__。
A.
活塞环达到其工作温度时，自由膨胀受到限制而产生断环
B.
活塞环达到其工作温度时，可能产生夹环现象，导致气缸漏气、扫气箱着火
C.
气缸壁受到活塞环作用力变大，加剧对缸套磨损
D.
活塞环达到其工作温度时，泵油作用增大
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