[填空题]Electrical and Electronic Products

[填空题]Electrical and Electronic Products

[单项选择]Many of the electric and electronic products we purchase and consume today are what some industrial experts call "homogeneous toys". （　）
A. identical
B. homosexual
C. unrelated
D. distinguishable

[简答题]Electronic Data Interchange

[单项选择]Electrical engineers have repeatedly demonstrated that the best solid-state amplifiers are indistinguishable from the best vacuum-tube amplifiers with respect to the characteristics commonly measured in evaluating the quality of an amplifier’s musical reproduction. Therefore, those music lovers who insist that recorded music sounds better when played with the best vacuum-tube amplifier than when played with the best solid-state amplifier must be imagining the difference in quality that they claim to bear.
Which one of the following, if true, most seriously weakens the argument
A. Many people cannot tell from listening to it whether a recording is being played with a very good solid-state amplifier or a very good vacuum-tube amplifier.
B. The range of variation with respect to the quality of musical reproduction is greater for vacuum-tube amplifiers than for solid-state amplifiers.
C. Some of the characteristics that are important in determining how music sounds to a listener cannot be measured.
D. Solid-state amplifiers are more compact, use less power, and generate less heat than vacuum-tube amplifiers that produce a comparable volume of sound.
E. (E) Some vacuum-tube amplifiers are clearly superior to some solid-state amplifiers with respect to the characteristics commonly measured in the laboratory to evaluate the quality of an amplifier’s musical reproduction.

[填空题]BRIDGE ELECTRICAL
Telephone order
Item: 9. Belmont ______
Customer: 10. Ann ______
Model number: 11. ______
Delivery address: 12. 22 ______
13. on the ______
Delivery day: 14. ______
Today: 15. send a ______

[填空题]Nicotine molecules allow greater electrical charges to pass between neurones.

[填空题]BRIDGE ELECTRICAL
Telephone order
ltem: (9) Belmont ______
Customer: (10) Ann ______
Model number: (11) ______
Delivery address: (12) 22 ______
(13) on the ______
Delivery day: (14) ______
Today: (15) send a ______