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| Can you imagine what life would be like if there was no telephone? You could not 1 your friends on the phone and talk to them. lf fire 2 out to your house, you 3 call the fire department. If somebody 4 sick, you could not call a doctor. In our 5 life we need to communicate with 6 .We do this 7 by speaking to other people and listening to what they have to say to us, and when we are 8 to them, we can do this very easily. 9 ,our voices will not travel very far even when we 10 , and it is thanks to the 11 of the telephone that we are 12 able to communicate with each other 13 hold talks when we are far apart. We can hear each other 14 clearly as if we 15 in the same room. The man who made this 16 was Alexander Graham Bell, a Scotsman, born in Edinburgh in 1847. Bell, a teacher of visible speech (可视语言 ), who later moved to Canada, 17 all his time experimenting. 18 enthusiastic(热情的) was he in his research for means for 19 speech by electricity that he left 20 time for his day-to-day work and at one time was almost penniless (身无分文). | ||||
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You can't avoid a conflict at work. If you can avoid a conflict, it means you will win what you want
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nswer the question you only
f life. 
eals at the wrong time each day. 
500 calories per day and not gain any weight.
ight has nothing to do with these things. One of the most important things you can do to 
them at the right time, and
eason why people are overweight according to the author?
xercise every day