—Oh, Miss Yang, what happened? Why are your eyes ______ tears?

—It's Mid-autumn Festival today, but I can't get together with my family. I feel so ______. [ ]

A. filled of; lonely

B. filled with; alone

C. full of; lonely

D. full of; alone

个别气门配气相位偏早或偏迟不大时，可通过（）的方法予以解决。

A.调整气门间隙

B.凸轮轴偏位键法

C.凸轮正时齿轮轴轴向移动法