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【单选题】
The _____ of the moon for the earth causes the tides.
A.
audition
B.
admirationn
C.
attributionn
D.
attraction
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【单选题】具有祛风除湿,温经止痛功效的药物是
A.
川乌
B.
独活
C.
防己
D.
防风
【单选题】( ) 植物是我国最早记载的有毒植物 , 具有祛风除湿、温经止痛的功效 , 系著名的中草药之一。
A.
乌头
B.
蓖麻
C.
人参
【简答题】It is used to describe a frequency distribution which is not symmetrical and the left tail is stretched out longer than the right.
【简答题】It is a discrete probability distribution of the number of successes in a sequence of independent Bernoulli random experiments.
【单选题】Distribution center is an economic organization specialized in goods distribution activities. It is also a logistics node integrating processing, tally and ( ) functions.
A.
Purchase
B.
production
C.
sales
D.
delivery
【判断题】Wal-Mart is well known for their progressive distribution systems. While distribution is important, it is not a marketing decision.
A.
正确
B.
错误
【简答题】It is a distribution that the area between negative 1.96 and positive 1.96 is 95%.
【判断题】It is possible for a distribution to have more than one mode.
A.
正确
B.
错误
【单选题】If the expectation of a sampling distribution is located at the parameter it is estimating, then we call that sampling distribution
A.
unbiased.
B.
minimum variance.
C.
biased.
D.
random.
【简答题】It is a distribution similar to normal distribution, but it is not a normal distribution.
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