With the implementation of the debt replacement plan, the risk of local debts being unable to be paid due has basically disappeared, and rigid payment has been ensured again. However, there are still many technical issues to be resolved in order to truly standardize local debt management, the most prominent of which is the local government. Credit rating issues. Credit ratings are the basis of bond pricing. They are directly related to the issuer's financing costs, but because the credit rating standards are not clear, the government credit ratings of developed regions in the east and the less developed regions of the west are the same. Local government credit and national credit ratings Similarly, even local debt rates are lower than the national debt rate, which is obviously unreasonable in theory, and it does not reflect the requirement of "the market plays a decisive role in the allocation of resources". What does this passage mean? ['Local debt management risks still need attention.', 'Local government credit rating system needs to be improved.', 'The determination of debt interest rates should be in line with market rules.', 'Geographical differences should be considered when addressing local debt issues.']