假肥大型肌营养不良患儿,dystrophin缺失主要引起了哪个部位的病理生理学变化()
A.脊髓前角细胞
B.肌细胞膜
C.肌细胞线粒体
D.神经-肌接头
E.周围神经
参考答案:B
The examination will begin at 10:30. Those who come late ____ to the examination room. [ ]
A. have not been admitted
B. don't admit
C. will not be admitted
D. didn't admit
下列离子方程式不正确的是[ ]
A.将氯化亚铁溶液和稀硝酸混合:3Fe2++NO3-+4H+=3Fe3++NO↑+2H2O
B.苯酚钠溶液中通入少量CO2:C6H5O-+CO2+H2O→C6H5OH+HCO3-
C.硫化钠的水解反应:S2-+H2OHS-+OH-
D.用惰性电极电解饱和氯化镁溶液:2Cl- + 2H2OH2↑+ Cl2↑+2OH-