脉搏骤起骤落，急促有力，称为()
A．奇脉
B．短绌脉
C．交替脉
D．不整脉
E．水冲脉
参考答案：E
What laboratory finding is the primary diagnostic indicator for pancreatitis
A. Elevated blood urea nitrogen (BUN).B. Elevated serum lipase.C. Elevated aspartate aminotransferase (AST).D. Increased lactate dehydrogenase (LD).
某种溶液中含有三种三肽：A肽：Tyr-Arg-Ser，B肽：Glu-Met-Phe和C肽：Asp-Pro-Lys，α-COOH基团的pKa为3.8；α-NH3基团的pKa为8.5。在哪种pH（2.0，6.0或13.0）下，通过电泳分离这三种多肽的效果最好？
