Experts warn that medical waste from hospitals, if      properly, may contribute

Experts warn that medical waste from hospitals, if      properly, may contribute

题型:不详难度:来源:
Experts warn that medical waste from hospitals, if      properly, may contribute to spreading diseases.
A.not handledB.not being handled
C.not to be handledD.not having been handled

答案
A               
解析
             
试题分析:考查非谓语动词。句意:专家警告说,如果医院的医疗垃圾不能正确的处理,可能会导致疾病的蔓延。If 引导的条件句的主语是 medical waste from hospitals ,与handle之间是被动关系,故选A项。        
考点 : 考查非谓语动词
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