Question

【题目】An _________ is a scientific test that is done in order to discover what happens and to get new knowledge.
A.experiment
B.exchange
C.example

Answer 1

【答案】A
【解析】句意：一个……是一个科学测试，为了发现发生了什么还有获得知识。A.实验； B.交换； C.例子。结合句意选A。