问题
选择题
等边三角形、正方形、半圆形的对称轴的条数分别为x，y，z，则x2+y2=[ ]
A．5
B．10
C．25
答案
答案：C
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等边三角形、正方形、半圆形的对称轴的条数分别为x，y，z，则x2+y2=[ ]
A．5
B．10
C．25
答案：C
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| Beethoven had an ugly face and a very 1 temper (脾气) but people 2 him to their homes. When he lost his temper, they forgave (原谅) him. He was often poor and ill during his life. After one illness, he suddenly 3 himself deaf. At that time he was 4 31. What a blow it was on him! 5 this didn't stop Beethoven 6 on in his life.He went on 7 much music. He wrote long pieces and short pieces, happy ones and 8 ones. During his life, he composed (作曲) about 300 pieces. 9 people's surprise, he wrote some of his best and most beautiful pieces 10 he became deaf. Many of them are known and loved all over the world. | ||||
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