Letters play an important role in history. When we write a letter, it is common for us to use an envelope(信封) to protect the letter. But do you know the history of the envelope? (51).)G It is believed that the envelope first appeared over 4,000 years ago. However, the early en...
When we write a letter, it is common for us to use an envelope( 信封)to protect the letter. But do you know the history of the envelope? 6.___It is believed that the envelope first appeared in ancient China more than 4,000 years ago. However, the early envelope was something like ...
语篇填词The telephone is one of the most important inventions in history. As we all know, Alexander Geaham invented the telephone in the 19h c. Thanks to this invention, people can speak to each other over d. Before the telephone was invented, people k in touch with their family or frie...
Just a few decades ago, people had to rely on letters or landline phones to communicate with each other. But now, we can chat with friends from all over the world in just a few seconds. The internet has changed how we live and work in so many ways. Let's not forget about the ...
【题目】Ⅱ.语法填空Letters and letter writing have played an importantrole in American history. This fact is not 1(surprise). America is a vast country as well as acountry of immigrants, 2 (leave) loved ones behindin search of a better life. Communication has alwaysbeen a necessary part ...
People no longer had to rely on writing letters and waiting for days or weeks to receive a response. Thanks to the telephone, we can communicate immediately, connecting with friends and family no matter where they are in the world.The telephone has 8 ( change) our lives in many ways. It...
People no longer had to rely on writing letters and waiting for days or weeks to receive a response. Thanks to the telephone, we can communicate immediately, connecting with friends and family no matter where they are in the world.The telephone has 8 ( change ) our lives in many ways. ...
It's something about an important person in history.. 查看本题试卷 题目 5. Look carefully at the back of a California state quarter.A man with a walking stick is pictured there.A bird called a California condor (大秃鹫) is flying overhead.Who is this man,and why is he so important...
Letters play an important role in history. When we write a letter, it is common for us to use an envelope(信封)to protect the letter. But do you know the66of the envelope? In fact, the history of the envelope is probably a little67than you think ...
For decades, the donor of these cells, which were code-named HeLa, remained anonymous. In the 1970s, Henrietta’s name was revealed and the origins of HeLa, a code for the first two letters in Henrietta and Lacks, became clear. While Henrietta Lacks may no longer be with us, her contr...