王翔在病床上以(顽强 坚强 刚强)的毅力,战胜了四年来病魔造成的痛苦.(划去括号中不恰当的词语

解题思路：根据数的数列中正负数的排列规律，我们可从头将数列中的数每三个数分为一组，每组中前两个数为正数，后一个数为负数，然后据此就能求出这50个数中有多少个正数及负数了．

根据题意，可从头将数列中的数每三个数分为一组，每组中前两个数为正数，后一个数为负数．
50÷3=16…2．
最后余两个为正数，
所以共有正数：2×16+2=34（个）；
共有负数：16个．
故答案为：34，16．

点评：
本题考点： 数列中的规律．

考点点评： 完成本题要注意，本题只和正负数的排列规律有关系，和数值的大小没关系．

hello,everyone,I am wangxiangwen

Hello,everyone!My name is Wang Xiang,I'm 13-year-old,I live in 17th,Renmin South Road,DaLi.I'm interested in playing table tennis and computer games.

1.王翔按照一定的规律写数：1 +2 -3 4 +5 -6 7 +8 -9……,当写完第50个数时,他停了下来.他写的数中一共有（34）个正数,（16)个负数
2.把一个正方形的一边减少10%,另一边增加1米,得到的长方形与原来的正方形面积相等,那么,原来正方形的面积是（81)平方米.
3.一瓶纯酒精重200克,用掉了20克.再用水填满,这是酒精的浓度为（A)
A90% B10% C95% D45%

根据题意，可从头将数列中的数每三个数分为一组，每组中前两个数为正数，后一个数为负数．
50÷3=16…2．
最后余两个为正数，
所以共有正数：2×16+2=34（个）；
共有负数：16个．
故答案为：34，16．

笨啊!你可以先用中文字打好然后上百度翻译下就是咯!唉

One possible version：
My Good Friend
I have a good friend. His name is WangXiang. He is a student. He is fourteen years old. He lives in Guangdong in China. He is tall with a round face ,a wide mouth and big eyes. His father is an office worker and his mother is a nurse. His brother is 12 years old and he is a student, too. His favorite food is chicken. He usually has rice, fish and vegetables for dinner.

1. The first time I came to the new environment , I spent an unforgetful time.
2. Wangxiang and the classmantes are very friendly to me. They often help me with my studies. He often takes care of me in daily life, for example, he often invites me to meals in his home , go to the cinema and lends me books, etc.
3. The teachers also have done a lot for me. Tey often encourage me. I am very grateful to them.