the前面加什么介词

前面加介词in，on ，at，under等，例如：

1、This paper is a report of the authors work on cryotherapy in the treatment of skin diseases.本文总结了作者5年来应用液氮冷冻疗法治疗皮肤疾患40余种8000余例中经随访所获的1126例疗效。

2、On the face of it， it seems like a great deal.表面上看来好像很多。

3、The Main Problems and some Solution of Government Regulation of spaces over and under the Land.土地上下空间政府管制中的问题与对策。