下列心肌标志物何者分子量最小（）
A.Mb
B.CK－MB
C.LD
D.cTnI
E.AST
参考答案：A
The milk must be preserved at this temperature until it ____.
A．will process
B．is processed
C．has processed
D．had been processed
对于潜在特许经营者，首要要获取信息的来源是（）.
