7 7 7 7=3 . Нужно расставить знаки +-*:( ) . - №25658068

7 7 7 7=3 . Нужно расставить знаки +-*:( ) .
- Предмет:
  Математика
- Автор:
  janetta
- 5 лет назад

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Scientists in the United States have found that hibernating bears manage to keep fit in their sleep. The (9) ___________ that over 130 days of winter hibernation bears (10) ___________ only a quarter of their muscle power was made by (11)___________ from the University of Wyoming. The scientists (12) __________ samples from black bears at the start and finish of the hibernation. The researchers had to (13) ___________ attach devices to the bears and this meant (14)___________ into the caves (15) ___________ the autumn and spring. They attached a machine to the bears’ legs for (16) ___________ muscle strength. The device was (17) ___________ to a computer and very small electric (18)___________ were sent to the bears’ nerves causing the legs to move suddenly and the measurement was then taken. The scientists are (19) ___________ that their research will enable them to help humans that are confined (20) ___________ bed for a long time. Human beings that are (21) ___________ for 130 days lose a/an (22)__________ 90% of their body strength. Furthermore, in the future there might be long-distance space (23) ___________ and the effects of lack of muscle movement will need to be considered.
Вопрос № 1
Choose the correct answer for (9).
A discovery
B invention
C exploration
D experiment
Вопрос № 2
Choose the correct answer for (10).
A waste
B lose
C gain
D spend
Вопрос № 3
Choose the correct answer for (11).
A investigators
B researchers
C detectives
D discoverers
Вопрос № 4
Choose the correct answer for (12).
A made
B took
C did
D gained
Вопрос № 5
Choose the correct answer for (13).
A accurately
B steadily
C slowly
D carefully
Вопрос № 6
Choose the correct answer for (14).
A climbing
B running
C creeping
D sliding
Вопрос № 7
Choose the correct answer for (15).
A at
B in
C on
D over
Вопрос № 8
Choose the correct answer for (16).
A measuring
B guessing
C adding
D estimating
Вопрос № 9
Choose the correct answer for (17).
A stuck
B tied
C transmitted
D connected
Вопрос № 10
Choose the correct answer for (18).
A wires
B messages
C signals
D shocks
Вопрос № 11
Choose the correct answer for (19).
A optimistic
B enthusiastic
C sympathetic
D pessimistic
Вопрос № 12
Choose the correct
answer for (20).
A to
B in
C at
D with
Вопрос № 13
Choose the correct answer for (21).
A inactive
B unenergetic
C lazy
D unmovable
Вопрос № 14
Choose the correct answer for (22).
A guessed
B estimated
C predicted
D measured
Вопрос № 15
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