呼吸衰竭(缺氧和二氧化碳)的发病机制主要有()
A.V/Q比例失调
B.弥散功能减退
C.抗生素的应用
D.酸碱平衡失调
E.肺泡通气不足
参考答案:A, B, E
Which of the following is NOT an assumption of the binomial distribution()
A. The trials are independent.
B. Random variable X is discrete.
C. The expected value is a whole number.
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