In the of proof , the police could not take action against the man .
A. lack
B. shortage
C. absence
D. failure
网友回答
A. lack
B. shortage
(答案→)C. absence
D. failure
解析：in the absence of 缺少 shortage 缺乏, 无此搭配。In the developed countries, there's a great shortage of labour / work force. 发达国家劳动力非常缺乏。