It is the fixed deposit receipt with building a bank and construction bank bear sold national debt serves as impawn , if be during loan individual cannot reimbursement , the bank cashs deposit receipt or national debt will return loan 它是以在建設銀行的定期存單和建設銀行承銷的國債作為質(zhì)押,假如在貸款期間個人不能還款了,銀行就把存單或國債兌現(xiàn)來還貸款。