更多"Pigeons can carry messages for abou"的相关试题:
[单项选择]Pigeons can carry messages for about _____.
A. two weeks
B. four weeks
C. two years
D. four years
[单项选择]How can the group carry out their studies
A. By using satellite images, maps, etc.
B. By studying specific farming methods.
C. By studying the variation of human population.
D. By analyzing the quality of crops.
[多项选择]Nonverbal messages can be used to accent or emphasize distinct points in verbal messages. Which of the following are the examples of accenting（）
A. Saying something quicker than usual.
B. Pausing before saying something.
C. Saying something in a lower voice than usual.
D. Saying something louder than usual.
[单项选择]Glass-fiber cables can carry hundreds of telephone conversations ______.
A. spontaneously B: simultaneously C. immediately D. immiscibly
[单项选择]Fiber-optic cables can carry hundreds of telephone conversations ______.
A. simultaneously
B. spontaneously
C. homogeneously
D. contemporarily
[单项选择]Messages can easily be sent from one operator to another as long as they share the same data store,
A. have
B. type
C. email
D. store
