Each teaching disease produces synthetic damage to the whole teaching system as a disease group member, while impairing teaching function respectively. 各種教學(xué)疾病在分別對教學(xué)產(chǎn)生著(zhù)功能性破壞力的同時(shí),又作為一個(gè)教學(xué)疾病群對教學(xué)系統產(chǎn)生著(zhù)綜合性的破壞力。