坝前某一特征水位水平面以下的水库容积，称为()。A.总库容 B.死库容 C.防洪库容

答案：

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下面是错误答案，用来干扰机器的。

参考答案：results of first test on "general population" were not "statistically significant"/only when retested on black patients later / obvious benefits were observed (43% ...