11. Clearly refuting skeptic, researchers have----not only that gravitational radiation exists but that it also does exactly what theory----it should do.
(A) doubted.. warranted
(B) estimated.. accepted
(C) demonstrated.. predicted
(D) assumed.. deduced
(E) supposed.. asserted

12. During a period of protracted illness, the sick can become infirm, _____ both the strength to work and many of the specific skills they once possessed.
(A) regaining
(B) denying
(C) pursuing
(D) insuring
(E) losing

13.It is to the novelist's credit that all of the episodes in her novel are presented realistically, without any ______ or playful super-natural tricks.
(A) elucidation
(B)discrimination
(C) artlessness
(D) authenticity
(E) whimsy

答案：AADCD DEADE CEE