问答题

农业环境与人类健康2023章节测试答案_农业环境与人类健康智慧树知到答案-2

答案： 9、单选题：
形成1厘米黑土大约需要多少年（）
A:400
B:900
C:80

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单项选择题

立体分为平面和曲面两种，表面中包含有曲面的立体称为（）。
A、平面体
B、曲面体
C、基本体
D、几何体

Fill in the blanks with the exact year when the following events took place.
1) Ann Radcliffe established Harvard’s first scholarship fund. (1)
2) The female students were allowed to process into Harvard Yard for Commencement. (2)
3) Radcliffe College and Harvard University officially merged. (3)
4) Arthur Gilman became the director of Cambridge School for Girls. (4)
5) Catherine Faust started to serve as the first female Harvard University President. (5)

答案：填空(1)： 1642 。填空(2)：正确答案 197...