急性胰腺炎的早期诊断指标是()
A.尿淀粉酶
B.LPS
C.血清淀粉酶
D.ALT
E.AST
参考答案:B
Can your sister cook the meals?[ ]
A. Yes, she can.
B. No, she can.
C. Yes, she can't.
通风机常用的异步电动机有()等系列。