175期:半数特围【01-05-10-11-12-13-14-16-17-21-23-24-29-32-33-35-36-38-39-40-41-42-43-49】开21准
176期:半数特围【04-05-08-10-11-13-20-23-24-27-28-29-30-31-34-35-37-43-44-45-46-47-48-49】开02错
177期:半数特围【01-02-04-05-07-08-10-12-13-16-17-18-20-26-27-30-32-39-40-42-44-46-48-49】开14错
178期:半数特围【02-03-05-06-07-08-09-13-16-19-22-23-24-25-27-33-34-35-36-37-38-45-46-49】开??