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问题 单项选择题

恙虫病的病原体属于（）

A.细菌

B.病毒

C.立克次体属

D.东方体

E.衣原体

答案

参考答案：D

单项选择题

香薷散的功用是

A．祛暑解表，化湿和中
B．祛暑解表，清热化湿
C．清暑解热，化气利湿
D．清暑化湿，理气和中
E．祛暑化湿，健脾和中
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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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