68.
(A) by
(B) in
(C) at
(D) without

64. (A) so (B) if (C) although (D) all

65. (A) lifted (B) raised (C) risen (D) rose

66. (A) whereas (B) because (C) however (D) simply

67. (A) counts down (B) counts for (C) accounts in (D)accounts for

69. What does the word “Patches” in line 1 mean? (A) Pieces of cloth to fix a computer program (B) Software to improve a computer program (C) Hacking devices (D) Scams for commercial purposes

70. According to the passage, which of the following statements is NOT true? (A) Computer consultants warn users not to plug unknown devices into our computers (B) Western businessmen do not buy cell phones and laptops made in China (C) No firewalls are powerful enough to withstand all hackers (D) More and more personal information online have been stolen every year

71. Based on the passage, what in future is NOT predicted? (A) Almost five times more of such internet of things will be produced by 2015 (B) Cars will be driven without drivers (C) Home appliances can be remote controlled from your office (D) Medical devices can be monitored by doctors far away

72. What is most likely the topic of the paragraph following this one? (A) How Google decided its next investment (B) The hope of wireless technology (C) The security of the Internet of things (D) The miracle of smart thermostats

73. The passage is primarily concerned with________. (A) demonstrating why the methods of early seismologists were flawed (B) arguing that deep events are poorly understood and deserve further study (C) defending a revolutionary theory about the causes of earthquakes and methods of predicting them (D) discussing evidence for the existence of deep events and the conditions that allow them to occur.

74. The method used by Wadati to determine the depths of earthquakes is most like which of the following? (A) Determining the depth of a well by dropping stones into the well and timing how long they take to reach the bottom (B) Determining the height of a mountain by measuring the shadow it casts at different times of the day (C) Determining the distance from a thunderstorm by timing the interval between the flash of a lightning bolt and the thunder it produces (D) Determining the distance between two points by counting the number of paces it takes to cover the distance and measuring a single pace