A-A+
No one has yet succeeded in explaining the ___
问题详情
No one has yet succeeded in explaining the ______ of how life began.
A．cause
B．confusion
C．reason
D．puzzle
参考答案
正确答案：D
解析：句意：迄今还没有人能成功解释生命起源之谜。本题考查词义辨析。cause：原因，起因；confusion：混乱，困惑；reason：理由，缘故；puzzle：难题，迷惑。
