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【多选题】
补体激活的三条途径分别是A.
经典途径
B.
旁路途径
C.
MBL途径
D.
终末途径
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反馈参考答案：
举一反三
【简答题】34【多选题】心肌闰盘的细胞连接有
【单选题】For the sampling distribution of sample means, what is the relationship between the population mean and the mean of all possible sample means of size 25?
A.
They are equal.
B.
They are not equal.
C.
They are different by one standard error of the mean.
D.
They are both normally distributed.
【判断题】The standard error of the mean is the standard deviation of the sampling distribution of the sample mean .
A.
正确
B.
错误
【单选题】I like _______ colour of your jacket. I'll buy _______ jacket like this.
A.
a; a
B.
the; the
C.
the, a
D.
the; an
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