托福機(jī)經(jīng)作文
1.綜合：mima mounds 形成的幾種理論 a.human created it,for ceremonial purposes
b.earthquake
c.pocket g 這種動(dòng)物built 的
lecture一一反駁，說有問題，human做了mounds 但不是mima mounds，earthquake不能解釋所有地方的，pg 可能只是利用并沒有built
2.獨(dú)立
University professor 的most important role：is to educate their students not to do research