题目信息
Regular maintenance such as inflating tires, replacing air filters, and tuning the engine can not only extend the life of a vehicle, but also can boost fuel efficiency.
A:not only extend the life of a vehicle, but also can
B:not only extend the life of a vehicle, but also
C:extend the life of a vehicle, but also can
D:extend not only the life of a vehicle, but can
E:not only extend the life of a vehicle, and also can
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等； 如有疑问，欢迎在评论区提问与讨论
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已选答案：
正确答案：
B:not only extend the life of a vehicle, but also
考察not only……but also……前后部分的平行
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