儿童牙齿x光片可怕

白的促4986小孩子牙是龋齿怎办?小孩今年8岁,门牙好象换了,现在问题是老牙龋
茹怪伯18120768701 ______ 你好: 你描述的“老牙龋齿”,是指乳牙龋坏吗?乳牙龋坏尽量不要拔牙,否则会影响到换牙,请医生将龋坏的牙齿补好,严重的需要做根管治疗,家长要好好监督孩子刷牙,孩子的恒牙应该已经萌出,如果孩子口腔卫生保持不好,建议家长及时为恒磨牙做窝沟封闭,这些牙齿都是不会换的. 至于孩子门牙之间的缝隙,可以先观察,一般孩子在替牙合期会有此现象发生,不必紧张,但如果缝隙增大就要注意,拍张牙片看是否有多生牙.

白的促4986下列有关DNA分子叙述正确的是( ) -
茹怪伯18120768701 ______[选项] A. DNA分子的X光衍射照片属于物理模型 B. DNA分子一条链中脱氧核糖与碱基交替连接 C. DNA分子上若缺失了上百对碱基,则可能发生了基因突变 D. DNA分子(含n个碱基),转录出的mRNA含 n 2个碱基

白的促4986麻烦帮忙写一篇英语作文.50词就行.假设你叫李明,昨天你在回家的路上从自行车上摔了下来,并被马上送往医院,拍了X光片,医生说胳膊摔坏了,需要服... -
茹怪伯18120768701 ______[答案] Hello, miss gao.I'm Li Ming, on my way home yesterday fell off the bike, and was taken to hospital, X rayed, the doctor says my arm is broken, need to take medicine and stay in bed for two days, unabl...

白的促4986英语翻译请翻译:成英文:一天,一个小男孩得了牙疼,于是他是看医生.他很害怕,但医生的鼓励让他顺利地拔完牙.他开心地回家了.所以使用的单词不要太... -
茹怪伯18120768701 ______[答案] One day,a little boy had a toothache,then he saw a doctor.He was very afraid,but the doctor allow him to successfully pulling teeth End.He went home happily. 和上面的不一样

白的促4986...之后,我还是有一点还怕,然后,爸爸又给我讲了一个笑话,我咧开嘴高兴得笑了,正当我笑得是时候,妈妈用力往后一拔,我的牙齿掉了! -
茹怪伯18120768701 ______[答案] One starts ,I am afraid of very much exelcymosis ,reason why,I am come over by my father accompany I still have been scared ... being moment just the time for ,mother has put forth self's strength to draw out backward once ,my tooth has lost