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　　Different people have different views on_____.Some people think that_____,whereas others aegue that __________.

　　As far as I am concerned, I agree with the opinion that ___________.For one thing,I firmly believe that ___________.For another,_____________.Just think of________,who/which_______.

　　Taking all these factors into consideration,we may safely come to the conclusion that______.Only if_______can we _______,just as the saying goes,________________.

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　　In recent years there have been many reports of ________.It turns a new chapter of _________in China,and will have far-reaching effects in the forthcoming years.

　　The biggest benefit,in my eyes,is that_______.In addition,_______.Finally,______________.

　　Apart from the benefits mentioned above,we should also face several unavoidable challenges.In the first place,_____________.In the second place,________.What’s more,_______________.In summary,we should_______________.

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　　Nowadays more and more ______are commonly and widely used in everyday life,ranging from __________to_____________.

　　The popularity of _______will have a great influence on ______.On the one hand,_________.On the other hand,__________.

　　To conclude,____________are just like a double-edged sword.With them we may________.However,one point should be kept in mind that we should make sensible use,always being a master instead of slaving of them.