Scientists have found it seems animals and humans are much alike than we thought.
A. as though
B. even though
C. only if
D. even if
网友回答
(答案→)A. as though
B. even though
C. only if
D. even if
解析：考查固定词组，A. as though虽然；B. even though尽管；C. only if只有；D. even if即使，句子意思“科学家已经发现了好像动物和人类比我们想象的更相似”