Temperature records have （ ）the existence of global warming.

Temperature records have （ ）the existence of global warming.
A、confirmed
B、declared
C、discussed
D、announced
【正确答案】：A
【题目解析】：句意：气温记录证实了全球变暖的存在。confirm v. 证实 His guilty expression confirmed my suspicions. declare v. 宣布 The government has declared a state of emergency. 紧急状态discussed v. 讨论 announce v. 宣告，通知 They announced that the flight would be delayed.