单项选择题What does the writer mainly talk about in this passage
单项选择题In the expression an immense body of literature , the word literature is nearest in meaning to ______.
单项选择题The phrase 'seeding' the center 'eye' means ______.
单项选择题The two factors concerning hurricanes that scientists most want to learn about are ______.
单项选择题Hurricane Belle was noteworthy because ______.