Although the disease threatens the lives of several thousand people every year,the——of supplies and equipment has hampered the progress of medical research for a cure.

未知 题库 2024-12-16 791

摘要:  A.rarity B.scarcity C.infrequency D.poverty参考答案:……...

 A.rarity
 B.scarcity
 C.infrequency
 D.poverty
参考答案:……
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