怀疑急性胰腺炎时,血清淀粉酶的数值应大于()
A.800U/L
B.1800U/L
C.3500U/L
D.5000U/L
E.6000U/L
参考答案:C
She looks _______ than she is.[ ]
A.much elder
B.more older
C.much older
D.very older
分动器有哪些功用?