托福考试

根据网考网考试中心的统计分析，以下试题在2017/12/22日托福考试习题练习中，答错率较高，为：73%
【单选题】 What does the passage mainly discuss
A．( How sediments were built up in oceans during the Cretaceous period
B．( How petroleum was formed in the Mesozoic era
C．( The impact of changes in oceanic animal and plant life in the Mesozoic era
D．( The differences between plankton found in the present era and Cretaceous plankton

网考网参考答案：A，答错率：73%
网考网试题解析：
暂时没有解析查看试题解析出处>>