Scientists have e to the conclusion the temperature on Earth is getting higher and higher.
A. what
B. that
C. which
D. when
网友回答
A. what
(答案→)B. that
C. which
D. when
解析：考查从句，从句the temperature on Earth is getting higher and higher不缺少成份，what表示…东西，可以做主语、宾语、表语；which表示哪一个，可以做宾语和主语；when关系副词，表示时间；that只起引导作用，不做成份，所以选B