Beijing is in the ____ part of China. [ ]
A. south
B. north
C. southern
D. northern
答案:D
下列电离方程式书写错误的是
A.H2SO4 ="==" 2H+ + SO42-
B.AL2(SO4)3 ="==" 2AL3+ + 3 SO42-
C.Ba(NO3)2 ="==" Ba2++ 2(NO3)2-
D.Ba(OH)2 ="==" Ba2+ + 2 OH-
痰饮内停型呕吐治疗最佳方剂是()
A.旋覆代赭汤加减
B.温胆汤
C.二陈汤
D.小半夏汤合苓桂术甘汤
E.小陷胸汤