The knowledge point to be investigated in analyzing this problem is the capital flow of insurance companies. Items A, B and C: Article 106 of the Insurance Law stipulates: "Insurance companies must use funds steadily and follow the principle of safety. The use of funds by insurance companies is limited to the following forms: (1) bank deposits; (2) buying and selling bonds, stocks, shares of securities investment funds and other securities. (3) investing in real estate; (four) other forms of use of funds as prescribed by the State Council. The specific management measures for the use of funds by insurance companies shall be formulated by the the State Council Insurance Regulatory Authority in accordance with the provisions of the preceding two paragraphs. " Items a, b and c belong to the above situation. Therefore, A, B and C are correct. Item D: Article 8 of the Insurance Law stipulates: "The insurance industry is operated and managed separately from banks, securities and trust industries, and insurance companies are established separately from banks, securities and trust institutions. Unless otherwise stipulated by the state. " Accordingly, China implements the principle of separation of finance from industry and commerce, and separation of banking, insurance and securities management from supervision. So item d is a prohibited act. So ... item d is wrong. To sum up, the correct answer to this question is ABC.