题目:
Digging in sediments in northern China, evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had previously thought.
选项:
A、evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had
B、evidence gathered by scientists suggests a much earlier emergence of complex life-forms than had been
C、scientists have gathered evidence suggesting that complex life-forms emerged much earlier than
D、scientists have gathered evidence that suggests a much earlier emergence of complex life-forms than that which was
E、scientists have gathered evidence which suggests a much earlier emergence of complex life-forms than that
答案:
C