单项选择题

Creating a relatively simple model of the known ecosystem requires a tremendous amount of work even withset of data at our disposal; creating an accurate model for less well-understood ecosystems might well provepursuit.

(A) a comprehensive … a quixotic
(B) an expansive … a realistic
(C) a consequential … a viable
(D) an unproven … a feasible
(E) an incomplete … an impossible

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单项选择题

单项选择题

Creating a relatively simple model of the known ecosystem requires a tremendous amount of work even with______set of data at our disposal; creating an accurate model for less well-understood ecosystems might well prove______pursuit.

Creating a relatively simple model of the known ecosystem requires a tremendous amount of work even withset of data at our disposal; creating an accurate model for less well-understood ecosystems might well provepursuit.