画出经过透镜的的光线。
—Do you mind my _ the window?
—No, I don't. You can do it as you like. [ ]
A. close
B. to close
C. closing
D. closeing
(EMB145)关于发动机加滑油说法正确的是()
A.直接把油倒入油箱
B.用专用加油车加入
C.A&B都可以