题目

1.Invention What do you think were the most important inventions in the 20th and 21st centuries?
What do you think are the advantages and disadvantages of the mobile phones,Iphones,facebook,or other modern equipment you’re using?

提问时间：2021-01-02

答案

certainly iphone
IPhone iPhone is apple on January 9,2007 and Cingular telecom company launched a phone,on June 29,2007 in the U.S.market.It has 8 GB built-in capacity,3.5 inch,touch screen automatically adjust the light source,support full screen play,is 320 x 480 resolution,16 million color.And the iPod,iTunes sync with iPhone,can not only is music,pictures,also may be the address book,calendar,photographs,remember,bookmarks,email,etc,built-in 2 million pixel camera,can be directly connected ordinary headset 3.5 mm joints,and bring their own horn and mic and iPod connectors.All these functions,are integrated in the thickness is only 11.6 mm to the airframe of,the weight of the also however 135 grams.