单选题 The scientists are______analyzing the results of their experiment to make sure the data in the concluding report is accurate.

【正确答案】 B

【答案解析】解析：根据上下文语义，此处意为“科学家们正在谨慎地对结果进行分析”，因此副词(B)cautiously(谨慎地)为正确答案。(A)extremely意为“极其”，(C)vainly意为“白费地，徒劳地”，(D)firmly意为“坚决地”。