高炉用耐火材料的抗碱能力由强到弱的排序（）。
A．石墨砖，碳化硅砖，碳砖
B．石墨，碳砖，碳化硅砖
C．碳化硅砖，碳砖，石墨砖
参考答案：A
Which of the following is closest in meaning to the sentence you just heard().
A.When his wife needs help in the kitchen, he always does it without any complaint.
B.He never stops whoever comes to help his wife in the kitchen.
C.He never goes to help his wife in the kitchen.
D.He never hesitates to help his wife in the kitchen.
规范监管方式注重( )。
A．保险业经营的实体
B．保险经营上的合法
C．保险合同的规范
D．保险企业全方位的管理
