帮忙区分英语这几个相似词组

1。由多少个部分组合而成
The test paper is made up of two sections。
2。由某种原料制成（已经不能看出原材料的原貌）
This kind of paper is made of wood。
3。在某地被制造出来
This machine is made in Germany。
4。由某种原料制成（还能看出材料质地）
The desk is made of wood。