层燃炉中的前拱和后拱各起何作用？

不属于结核分枝杆菌体外药敏试验的是（）

A.琼脂纸片洗脱法

B.放射性核素法

C.绝对浓度法

D.耐药比率法

E.部分浓度法

设N_A表示阿伏加德罗常数的值，下列说法正确的是（   ）

A．1 mol Fe与足量H₂O（g）反应，转移的电子数为2N_A

B．10mL pH＝6的纯水中含OH^-数目为10^-10 N_A

C．1mol羟基中含有的电子数目为9 N_A

D．100 mL 1 mol/L 的Na₂CO₃溶液中含有CO₃^2-的数目为0.1N_A

2006年5月，公民甲将自己的两居旧楼房以40万元的保险金额向中国人民保险公司某支公司投保保险，保险期为1年。双方依照保险公司提供的保险单订立保险合同，其保险单正面注明：“本公司收到上述保险费，同意按照背面所载家庭财产保险条款的规定承担责任。”该保险单背面保险金额项中规定：“由被保险人根据保险财产实际价值自行确定，保险方不负核证责任。”赔偿处理项中规定：“保险财产遭受责任范围内的损失时，本公司根据保险财产的实际损失，并按照当天的实际价值计算赔款，但最高赔偿不超过保险金额。”甲接受保险单上的上述条款，与保险公司订立了保险合同。合同订立后的同年9月15日，因发生火灾，甲投保的楼房被全部烧毁。出险后，保险公司确定受损楼房的建筑面积为91平方米，根据当地同类房屋造价、旧屋折旧价、市场交易价的综合分析确定按每平方米3000元的价格赔偿甲，共计27.3万元。而甲认为，自己投保40万元，应赔40万元。双方争执不下，甲于同年12月向人民法院起诉。

什么是保险金额，我国《保险法》对此是如何规定的？（2）本案中的保险公司应如何理赔？

When I was seven years old my morn was diagnosed(诊断) with cancer. The doctors told us my morn might be saved with surgery(手术). But it could also kill her. She chose to have it.
The day before the surgery I was off school, and my mom planned the best day of my life, everything I loved at seven and everything that would put a smile on my lace. The day began with her waking me up saying, "Kate, I have a surprise for you. Come and see." The surprise was a doll I had wanted for the longest time. Throughout the day, she told my everything that she thought I would need to know to grow up and be a good person; she told me to be the best I could be and that I would always make her proud. We had a picnic in the park, and it was so cold that we moved to the car. The day was filled with laughter. For the first time in a long time I could see she was really happy. I would never forget her smile, or the way her eyes shone as if we were the same age. It was the best day of my life, and I will never forget the conversations we shared.
My mother managed to live through the surgery. Now when I look back, I realize that the best day of my life could be her last and this could be the last day I would remember with her, the last one we shared. I also understand how unselfish a mother is.

Who made the decision to have the surgery in the story

A．The doctors

B．The patient

C．the writer

D．The patient’s family

病人葛某，输血过程出现头胀，四肢麻木，腰背部剧痛、呼吸急促，血压下降，黄疸等症状。

护士可给病人应用热水袋，放置的位置应在( )

A．足底
B．腹部
C．两侧腰部
D．背部
E．腋窝处