根据短文内容完成下列句子。
Qian Zhongshu, a very famous writer, was born on November 21, 1910 in Wuxi, Jiangsu.
Qian went to Qinghua University in 1929 because of his excellent performance in Chinese and English
languages. He met his wife Yang Jiang in Qinghua and married her in 1935. Yang was also a famous
writer.
As one of the best students in Qinghua University, Qian is best known for his book Fortress
Besieged. The book was very popular at home and in foreign countries. It has been translated into
English, French, German, Russian, Japanese and Spanish.
Qian passed away on December 19, 1998 in Beijing due to sickness.
1. Qian Zhongshu and his wife are both _________.
2. Qian Zhongshu _________ in 1998, at the age of 88.
3. "Fortress Besieged" means _________ in Chinese.
4. The book Fortress Besieged has been translated into _________ languages.
5. Because he was good at _________, Qian Zhongshu went to Qinghua University.
。则当边长为a+3 cm时。
解得a=5