静电喷涂时，喷涂距离较手工喷涂（）.
A.近一些
B.远一些
C.一样
D.不一定
参考答案：A
Don't let ____ in. I'm too busy to see ____. [ ]
A. nobody; somebody
B. anybody; nobody
C. anybody; anybody
D. somebody; anybody
磁感应是指在外磁场作用下使物体带有磁性的现象
