11. of all the electronic devices that engineers have produced, the computer has had the greatest impact on society. at the heart of every computer, there are microchips. microchips consist of large collections of tiny devices like the diode and transistor, connected on a single piece ("chip") of silicon. diodes and transistors are a)computer collections b)microelectronic devices c)silicion pieces d)computer engineers 12. how complicated the preparations for a camping trip are depends on the duration of the trip as well as the isolation of the area in which the camper intends to be. if a camper intends to stay at one of the many commercial campsites, most needs are provided for. however, for outdoor enthusiasts who want to get far from civilization, choosing camping paraphernalia such as tents, sleeping bags, cooking implements and other supplies should be done with care. paraphernalia is a)equipment b)food supplies c)sleeping bags d)campsites 13. the pueblo indians are those who dwell in pueblos, a name derived from the spanish word for village. the pueblo is usually built against the face of a cliff and generally consists of connected houses rising in a series of receding terraces. the roof of one house is the yard or patio of the next house. the kiva, where pueblo indians hold their secret ceremonies, is entered by an opening in the roof. a kiva is a)series of terraces b)pueblo indian village c) ceremonial room d)patio 14. the coyote resembles a medium-sized dog with a pointed face, thick fur, and a black-tipped, bushy tail. although its main diet consists of rabbits and other rodents, it is considered dangerous to livestock. consequently, thousands of coyotes are killed yearly. in recent years, nonlethal techniques, those that do not kill coyotes, have been developed to protect sheep and other livestock while allowing the coyote to remain in the wild. nonlethal techniques are those that a)allow livestock to live in the wild b)injure thousands of coyote yearly c)are not deadly to coyotes d)are dangerous to livestock 15. the phenomenon of a mirage, which is an atmospheric optical illusion in which an observer sees a nonexistent body of water, can be explained by two facts. first, light rays are bent in passing between media of differing densities. second, the boundary between two such media acts as a mirror for rays of light coming in at certain angles. a mirage is a)the boundary between two media b) a medium acting as a mirror c)an illusion d)a body of water 16. important officials visiting president theodore roosevelt were surprised by his menagerie of pets. no previous president had filled the white house with such a variety of animals. a menagerie is a group of a)staff members b) officials c)animals d)presidents 17. at least 50 different weed species fight off competitors by emitting toxins from their roots, leaves, or seeds. these poisons do their work in a variety of ways, such as inhibiting germination of seeds and destroying photosynthesis abilities. toxins are a)poisons b)roots c)leaves d)seeds 18. the english longbowmen did not draw their bows but bent them by leaning on them with one arm and the upper part of their body. this method utilized the strength of the body instead of just the arm and gave the archers endurance to use the longbow for extended periods. a longbowman is a)a bowing technique b)a method for utilizing the strength of the body c)an archer d)a bow e)a way to increase endurance for longer use of the longbow

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Ответы на вопрос:

Pyfkein

4,5(99 оценок)

11 a 12 a 13 b 14 a 15 d 16 c 17 a 18 b

LeadingLady

4,8(51 оценок)

1-j
2-g
3-f
5-i
6-c
7-a
8-e
9-d
10-b
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