问题
单项选择题
关于牙源性感染的概念,错误的是
A.病原菌可通过牙周组织进入体内
B.病原菌可通过病灶牙根尖进入体内
C.感染可向颌面部间隙扩散
D.牙源性感染中儿童更多见
E.智齿冠周炎也是牙源性感染的常见原因
答案
参考答案:D
解析:成人、儿童无明显差别。
关于牙源性感染的概念,错误的是
A.病原菌可通过牙周组织进入体内
B.病原菌可通过病灶牙根尖进入体内
C.感染可向颌面部间隙扩散
D.牙源性感染中儿童更多见
E.智齿冠周炎也是牙源性感染的常见原因
参考答案:D
解析:成人、儿童无明显差别。
When I was nine , my father was ill.I can remember my mother’s words ___16___ it were yesterday: “Kerrel, Your father has AIDS.Be very ____17___ when you are around him.” AIDS wasn’t something we talked about in my country when I was growing up.From then on, I knew that this would be a family ___18___.My parents were not together anymore, and Dad lived ___19___.For a while, he____20__ take care of himself.But when I was 12, his condition__21____.My father’s other children lived far away, so it fell to me to look after him. We couldn’t___22____ all the necessary medication for him, and because Dad was unable to work, I had no money for ___23____ supplies and often couldn’t even buy food for dinner.I would sit in class feeling completely ___24____, the teacher’s words muffled as I tried to figure out how I was going to manage. I did not share my ___25___ with anyone.I had seen how people ___26___ to AIDS.Kids laughed at classmates who had parents with the disease.And even adults could be ___27__.When my father was __28____to the hospital, the nurses would leave his food on the bedside table even though he was too weak to feed himself. I had known that he was going to die, but after so many years of __29____ his condition a secret.I was completely __30____when he reached his ___31___ days.__32___ and hopeless, I __33___ a woman at the nonprofit National AIDS Support.That day, she kept me on the phone for hours.I was so __34____to find someone who cared.She saved my life. I was 15 when my father died.He took his secret away with him, having never spoken about AIDS to___35____, even me.He didn’t want to call attention to AIDS.I do.
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