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Linda has never worked in radio or television before.
I have been convinced that the print media are usually more and more reliable than television.
Advertising media like direct mail, radio, television and newspapers _____to increase the sales of industrial products.
I am quite willing to help and _______ are the others.
Sheep are important tamed animals because they provide food and clothing;( ), they are used in making other products such as so, and glue. 选项
We are pleased to_________ you that we are interested in the Wave Radio and the CD advertised in Life of spring 2004. 选项
An economist is someone( )knows a lot about how goods and wealth are produced and used.
_____ the idioms are not easy to remember and use
4People are advised to use a programmed time-switch because _______
General radio communications in the global system are those between()concerning the management and operation of the ships and may have impact on their safety.
Important changes to charts and lights(including temporary ones),radio signals and sailing directions are listed in().
BRadio and television are very popular in the world today. Millions of people watch TV.Perhaps more people listen to the radio.The TV is,of course,more useful than the radio. On TV you can see and hear what is hap-pening in the world.Now radio is still with us. And the number of listeners is becoming larger. One reason for this is the invention of the transistor(半导体) radio. A transistor radio is sometimes very small. It is very easy to carry. You can put one in your pocket and listen to it on the bus or on your bike when you go to work. It is better.for blind people. The sight(视力J) of many old peo-ple is not good enough to watch TV. Then,when people are working,they can't watch TV, but they can listen to music or news over the radio. What-s more,radio is much cheaper than TV.( )26. Radio and television__________ in the modern world today.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the().
Wristpin bearings are difficult to lubricate because of their oscillating motion and()
Gear-type flexible couplings are often used in diesel engine drive trains because they()
Centrifugal pumps are popular because they are very simple in construction,and produce smooth, constant, () discharge.
27. Radio and television are quite useful because you can __________ .
The radio waves used for radar are very short,only()long.
When working with lumber, wire and staples are not desirable to be used because().
The height of a VHF radio antenna is more important than the power output wattage of the radio because().
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