厌氧菌是消化道内最多的细菌．对机体有利．医疗过程中应注意保护。
参考答案：对
In relation to the law of partnership, explain and distinguish between a limited and an unlimited partnership. (10 marks)
运算结果不是2010的表达式是( )。
A．int(2010.9)
B．round(2010.1，0)
C．ceiling(2010.1)
D．floor(2010.9)
