阅读短文，下列问题

B

      Mark Twain was a great writer in America. He wrote many books. He liked telling jokes in his books. People liked reading them very much. And it was full of jokes in his life, too. Mark Twain liked reading. So he often borrowed books from other people. One day, he wanted to borrow a book from his neighbor. His neighbor was a mean man. He didn't want to lend it to Mark Twain. Then he had an idea. He said to Mark Twain, “I have a rule. You will have to read the book at my home. If you want to borrow it from me, you should never take it out." Mark Twain had to read that book at his neighbor's house.

     A month later, his neighbor went to borrow a cropper (割草机) from Mark Twain. Mark Twain said to him with a smile, "I make a rule, too. That is, you must use my cropper in my garden. If you borrow it, you can never take it out either."

随着“互联网+”快速发展，越来越多的政府部门开通了官方“双微”（微博、微信公众号）这既有利于信息公开和服务群众，也为公民参与监督提供新的途径。公民通过官方“双微”进行监督时应注意（    ）

①保护自身的利益和需求，不要多管闲事

②证据收集的真实与合法，不做艺术加工

③及时反映情况并积极配合，不消极回避

④公开举报对象的所有信息，不姑息纵容

 读《那树》，文章第一部分，作者从哪三个方面描写早期的“那树”的？

下列地理事物与所在大洲组合正确的是（  ）

若对可导函数f(x)，恒有$f\left(x\right)+x{f}^{\text{'}}\left(x\right)>0$，则f(x)（  ）