Big data projects have been criticized mainly for their high cost and lack of results.
A、T
B、F
【正确答案】：A
【题目解析】：听力原文：The core of recent criticisms against big data project is the concern that expensive, massive data sets on biological phenomena-including the brain, the genome, the biosphere and more-won’ t necessarily lead to scientific discoveries.本题考查理顺逻辑。原文说最近对大数据项目的批评的核心是，人们担心，有关生物现象(包括大脑、基因组、生物圈等)的昂贵而庞大的数据集不一定会导致科学发现。题干说大数据项目被批评的主要原因是成本高、效果差。是对原文的概括，与原文相符，所以说法正确。
