更多"In digital electronics, signals are"的相关试题:
[单项选择]Hadn't my bike broken down, I ______ earlier.
A. should have come
B. would come
C. could come
D. had come
[单项选择]Hadn't the bus broken down, we ______ the train.
A. catch
B. had caught
C. could catch
D. should have caught
[单项选择]It is difficult to narrow down the present digital divide because ______.
A. leaders of poor countries have no development plan for their countries
B. poor countries have no money to buy computers and the Internet equipment
C. the poor country invest less on computer than on food
D. world leaders are more concerned about such challenges as peace or disarmament
[单项选择]Who had a broken arm
A. A child
B. An old woman
C. A police woman
D. A policeman
[单项选择]Gomeros employ the silbo instead of visual signals such as gestures because ______.
A. this method makes communication more rapid
B. their level of intelligence is too low to let them learn a code
C. weather conditions usually affect visibility
D. they learn to whistle at an early age
[单项选择]According to Johansson, the signals influencing women's individual decisions are ______.
A. political
B. private
C. social
D. educational
[单项选择]Nerve signals may travel through nerve or muscle fibers at {{U}}speeds{{/U}} as high as two hundred miles per hour.
A. velocities
B. impulses
C. ratios
D. atrocities
