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TOADY: OBSEQUIOUS:

A． brigand: arrogant
B． malefactor: poised
C． miser: stingy
D． stickler: careful
E． aristocrat: eloquent

单项选择题The two reputable hydrogeologists drafted some highly optimistic projections—with the ------- that these were speculative and should of course be tested.

A． caveat
B． analysis
C． hypothesis
D． precis
E． imprimatur