A-A+
A.Why it is difficult to use aerial photograph
问题详情
A.Why it is difficult to use aerial photographs in research.
B.Why oceanic research is so limited.
C.How oceanic research has helped land research.
D.How fossil remains are obtained from deep sea.Passage Two请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
B【解题思路】四个选项差别较大，但有两项提及了oceanicresearch，听音时可重点辨剐。【解析】短文在提到飞机前表示，海洋研究技术很有限，而且后面继续解释了为何用飞机的例子进行比较，inotherwords是作解释的典型说法。文章中举飞机的例子是为了阐释海洋研究的局限性，因此答案为B。
