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问题 单项选择题

介导ADCC的是（）。

A.CD3

B.IgG

C.IFN-γ

D.IL-4

E.CD4

答案

参考答案：B

单项选择题

下列不符合慢性增生性牙髓炎的表现的是（）

A.息肉充满整个龋洞

B.息肉探诊易出血

C.息肉探诊不易出血

D.息肉与牙周膜相连

E.息肉与牙髓相连
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单项选择题

A four-character password consists of one letter of the alphabet and three different digits between 0 and 9, inclusive. The letter must appear as the second or third character of the password. How many different passwords are possible

A．5,040

B．18,720

C．26,000

D．37,440

E．(E) 52,000
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