此患儿的疾病可能性最大为
A.小运动型发作(Lennox Sund)B.婴儿痉挛症C.Down综合征(先天性愚型)D.苯丙酮尿症E.粘多糖病
参考答案:C
小强用“16×”的目镜和“10×”的物镜观察人的口腔上皮细胞,他看到的细胞被放大了( )
What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?()
A.It will abort the transmission and set off an audible alarm that must be manually reset
B.It will initiate the DSC distress alert but,as no information will be transmitted,rescue personnel will not be able to identify the vessel,its position or its situation
C.It will initiate the DSC distress alert and default information will automatically be transmitted
D.It will initiate the DSC distress alert,but any station receiving it will have to establish contact with the distressed vessel to determine its identity,position and situation