If we go on using energy so wastefully,_____are that our oil wells will be dried up before new energ

题目简介

If we go on using energy so wastefully,_____are that our oil wells will be dried up before new energ

题目详情

If we go on using energy so wastefully, _____ are that our oil wells will be dried up before new
energy sources can be found to replace oil.  
[     ]
A. chances                
B. difficulties  
C. questions                
D. problems
题型:单选题难度:中档来源:同步题

答案

A

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