单项选择题

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.

A． useless
B． inexpensive
C． abstruse
D． repugnant
E． scarce
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单项选择题
His specialty is bringing to the forefront the strange and ------- acts of depravity that only the impassive and imperturbable subconscious is ------- to grasp and reckon with.
A． withering... surprised
B． orthodox ... avid
C． silly... unqualified
D． unseemly... reluctant
E． macabre...suited
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