单项选择题

The vireo's comeback may prove that habitat along streams in Southern California is recovering from the effects of pollution,（） indicator of environmental health in a state that has lost most of its （） woodlands.

A．a leading ... superfluous
B．an apocryphal ... ecological
C．a partial ... surfeit
D．a telling ... riparian
E． an anecdotal ... arboreal

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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
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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