複選題23.(AB) foremost (AC) nonchalant (AD) combusted (AE) substantially (BC) maiden (BD) otherwise (BE) impartially (CD) uneventful (CE) penchant (DE) generated

2. To preserve their energy, hummingbirds in the Andes Mountains have been found to go into exceptionally deep _____, a state similar to hibernation in which their body temperature falls by as much as 50 degrees Fahrenheit. (A) tumult (B) torpor (C) turmoil (D) tentacle