诊断Crohn病最有意义的病理改变是()
A.全壁性炎症
B.裂隙样溃疡
C.非干酪性肉芽肿
D.干酪性肉芽肿
E.瘘管形成
参考答案:C
如果用电容的容抗与电感的感抗相比,()
A.容量愈大容抗愈大,电感愈大感抗愈大
B.容量愈大容抗愈小,电感愈大感抗愈大
C.容量愈大容抗愈大,电感愈大感抗愈小
D.容量愈大容抗愈小,电感愈大感抗愈小
An analyst does research about financial statement effects of investment security classification. An unrealized loss on a marketable security classified as availablefor-sale most likely:
A. decreases assets on the balance sheet.B. creates a loss on the income statement.C. has no impact on the financial statements.