48 Genes are usually regarded as immutable, but in reality more than 90 percent of them are____ or less active in producing protein, so some types of stimulation can wake them up.
(A) mutable
(B) dormant
(C) predictable
(D) definite

44 (A) Description is either objective or subjective. (B) Objective description is purely factual, uncolored by any feelings of the author. (C) At times description carries almost the entire burden of explanation. (D) Its use is not restricted, however, to what we can perceive with our senses.

45 (A) There are usually many from which to choose. (B) In this respect writers have more freedom than artists. (C) Objective description is purely factual, uncolored by any feelings of the author. (D) Its use is not restricted, however, to what we can perceive with our senses.

46 (A) Description is either objective or subjective. (B) There are usually many from which to choose. (C) Ingenuity should not be allowed to produce excessive description. (D) Its use is not restricted, however, to what we can perceive with our senses.

47 (A) Description is either objective or subjective. (B) In this respect writers have more freedom than artists. (C) Ingenuity should not be allowed to produce excessive description. (D) At times description carries almost the entire burden of explanation.

49 Adding electronic entertainment devices to a vehicle is a formula for disaster in driving safety. (A) Adding electronic entertainment devices to a car is very likely to lead to auto accidents. (B) Drivers are easily distracted by electronic entertainment devices which are formulaic. (C) We should add electronic entertainment devices to a car for the sake of driving safety. (D) The more electronic entertainment devices are added to a car, the fewer auto accidents will occur.

50 When Mary was 45, her eye doctor told her that she had to get____ eyeglasses so that she could see clearly both near and far. (A) bifocal (B) binocular (C) bilingual (D) bilateral

1. The plane developed engine trouble shortly after take-off and had to make an emergency ____________. (A) landing (B) helping (C) waiting (D) boarding

2. To the great ____________ of many readers, a considerable portion of the space in any newspaper is occupied by advertisements. (A) hindrance (B) ignorance (C) negligence (D) annoyance

3. When a thirsty traveler sees a non-existing pool of water in the desert, he is having an optical ____________. (A) allusion (B) illusion (C) elusion (D) delusion

4. It was so dark that we could only see the ____________ of the mountains against the sky. (A) statue (B) measure (C) outline (D) impact