大全-10-6

 Suitable habitats for gray wolves have greatly dimin-

ished in area. In spite of this fact, the most sensible

course would be to refrain from reestablishing gray

wolves in places where previously they have been hunted

out of existence. Striving to bring back these animals to

places where they will only face lethal human hostility is

immoral.

6. The argument above depends on

(A) an appeal to an authority

(B) a belief that gray wolves are dangerous to

human beings and livestock

(C) an assumption that two events that occur

together must be causally connected

(D) an assumption that the future will be like the

past

(E) a threat of violence against those persons

presenting the opposing view

请教大家，这题为什么选D?