更多"The value of dolphins in military u"的相关试题:
[单项选择]The US military says the joint military action is aimed to _______.
A. drive off Iraqi planes in the no-fly zone
B. ensure a safe environment for planes patrolling the no-fly zone
C. wipe out Iraqi air force
D. support anti-government groups in Iraq
[单项选择]Researchers have discovered that dolphins are able to {{U}}mimic{{/U}} human speech.
A. import
B. imitate
C. impair
D. humor
[单项选择]Although dolphins sometimes swim singly or in pairs, they usually congregate in large herds, often numbering in the hundreds.
A. procreate
B. eat
C. live
D. assemble
[单项选择]Dolphins' brains are particularly well-developed to ______.
A. help them to travel fast in water
B. arrange sounds in different structures
C. respond to different kinds of sound
D. communicate with humans through sound
[单项选择]Which one is the proof showing that dolphins are breaking the family group
A. They attack people.
B. The fight among themselves.
C. They mate with their family members.
D. They are rude and cruel.
[单项选择]What is not the woman's impression about dolphins
A. Gentle.
B. Smart.
C. Lovely.
D. Peace-loving.
[单项选择]Why do dolphins attach each other head-to-head
A. They are making fun of each other.
B. They are doing exercise.
C. They are trying to damage the hearing system of their opponents.
D. They are gang raping.
[填空题]Dolphins(海豚) are intelligent and quick to learn; they also have a curious (express)（）.
[单项选择]Dolphins once were hunted for money because______.
A. they are rare and precious animals
B. valuable oil can be obtained form their head
C. they can produce oil for lubrication
D. they are able to utter sounds worth study
[单项选择]It is because of ______ that dolphins seldom sleep according to some scientists' research findings.
A. their stupidity
B. their vulnerability
C. the possible dangers in the ocean
D. their small size
[单项选择]What is the decimal value of the binary value 10010？（）
A. 16
B. 17
C. 18
D. 19
[单项选择]The military authorities are seriously considering abandoning the expensive ______ plane.
A. three million dollars
B. three millions of dollars
C. three-million-dollar
D. three million-dollar
