It’s easy to this camera , while putting the pieces together is quite difficult, so you must keep the directions well.
Atake over
Btake apart
Ctake down
Dtake up
网友回答
A. take over
(答案→)B. take apart
C. take down
D. take up
解析：句意：拆开这个照相机很容易，然而把这些零件再安在一起很困难，所以你必须很好的保留说明书。take over接管；take apart拆开；take down 记下；take up开始从事， 选B。