题目

引起中耳发生炎症的细菌进入中耳，一般通过的结构是(     ) A．咽鼓管   B．外耳     C．内耳    D．咽喉部 答案：A32、The number of deaths form heart disease will be reduced greatly it people _______ to eat more fruit and vegetables. A. persuade         B. will persuade        C. be persuaded      D. are persuaded