✔ 最佳答案
wikipedia has some neat things.
http://en.wikipedia.org/wiki/Administrative_division
I'm afraid your question can't be answered fully because there's no set rule to determine, in a strict order which is the biggest/smallest. The use of these terms sometimes is contrasting from country to country. What is big somewhere may not be so big elsewhere.
For example:In many countries, a province is a relatively small non-constituent level of sub-national government (similar to a county in many English-speaking countries). In others it is an autonomous level of government and constituent part of a federation or confederation, often with a large area (similar to a US state)