Question

【题目】Puzzled by this strange natural phenomenon, the scientists started to explore every _______ they knew to figure it out.

A. impression B. intention C. avenue D. design

Answer 1

【答案】C

【解析】

试题分析：考察名词。A.印象；B.意图；C.大道，途径，手段；D.设计；句意：因这个奇怪的自然现象所困惑，科学家开始尝试各种他们知道的方法去探索这个现象。故选C。