If a particular vaccine is produced only by one company at a single facility, there is a possibility that the supply of vaccine

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问题 If a particular vaccine is produced only by one company at a single facility, there is a possibility that the supply of vaccine could grow ______ if the company decides to cease production.

选项 A、useless
B、inexpensive
C、abstruse
D、repugnant
E、scarce

答案E

解析
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