71.
(A) combat
(B) comrade
(C) command
(D) compensation

67. What is the main concern of this passage? (A) Recent medical research on humans. (B) Discoveries of left and right halves of the brain. (C) How the human brain functions. (D) The secrets of human brains.

68. After reading this passage, what assumption could you make? (A) That we do not have enough technology to study the human brain. (B) That scientists are learning many new and exciting things about the brain. (C) That each half of the brain can only do certain things. (D) That scientists now know everything about the human brain.

69. Which of the following statement is TRUE? (A) According to recent studies, left half is devoted to sense, right half to sensibility. (B) With the amazing recent discoveries, scientists are just one step away from the truth of human brains. (C) Human brains have potentials far more than we used to presume. (D) Human brains lack the overall coordination capacity and the function of spinal cords is essential.

70. Which of the following statements is WRONG? (A) When some parts of the brain are injured, certain function relevant to these parts are paralyzed for sure and would never be taken back by other parts. (B) Human brain is a complicated organ we have not really explored thoroughly. (C) Recent discoveries of human brain bring confidence for scientists. (D) Human beings remain hopeful in the mission to explore the function of human brain.

72. (A) additionally (B) early (C) accordingly (D) previously

73. (A) acoustic (B) electrified (C) eccentric (D) elaborate

74. (A) accompanied (B) attached (C) appendix (D) apprenticed

75. (A) casket (B) helmet (C) costume (D) covenant

76. (A) optimzied (B) optional (C) outlawed (D) outcast

77. (A) sharpening (B) penalizing (C) penetrating (D) concentrating