1, cash; 2. Bank time deposits and certificates of deposit within one year (including one year); 3. Bonds: The remaining term is ≤397 days; 4. Bond repurchase: term ≤ 1 year; 5. Central bank bills: term ≤ 1 year; 6. Other highly liquid money market instruments recognized by the China Securities Regulatory Commission and the People's Bank of China;