问题
单项选择题
"Such a link" in the passage refers most probably to ______.
A．IPCC and climate changes
B．global temperatures and sea levels
C．natural changes and human activities
D．human activities and temperature rises
答案
参考答案：D
解析：[分析] 细节题型。 根据第二段第二句的most of the warming observed over the last 50 years is likely to be attributable to human activities牙口第三句的...discernible human influence on the climate判断D项正确。