A-A+
Deep-ocean sediments provide better informatio
问题详情
Deep-ocean sediments provide better information about the world"s past climate be cause they ______.
A．are well protected
B．have land-based evidence
C．are in isolation
D．have a longer history
参考答案
正确答案：A
解析：答案出自第四段第二句Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years...。
