单项选择题 If the phenomenon "extinction risk increased significantly with decreasing heterozygosity" agrees with the proposed effect on extinction, the passage assumes（）

单项选择题 There is another kind of spiritual sacrifice as well, quieter and less celebrated, but just as remarkable: that of making each day, in its most______aspects-cooking, eating, breathing—______the absolute.（）

单项选择题 As Socrates was a man of much dignity, with an______face, it was______to say whether he felt inwardly glad that the end had finally come, or felt sad over the result, and was too manly to show it（）