24．We have strong for believing that the mine accident in Heilongjiang was due to the poor management.
A. grounds
B. reason
C. cause
D. Purpose
网友回答
(答案→)A. grounds
B. reason
C. cause
D. Purpose
解析：“grounds”在本句中意为“充分的理由；根据”且常用复数形式。这句话的意思是“我们有充分的理由相信黑龙江的矿难事故是由于管理不善所致”。