第二节短文改错（满分15分）

Followed yoga (瑜伽) teacher's gentle instructions, Bai Yunuo,     76. ________

15, from the High School Attached to Beijing Normal University         77. ________

tried get each of her poses correctly. Bai's school offered 24             78. ________

elective course for Senior 1 students this term and she chose       79. ________

two. It was her first yoga class. "I'm happy what I can learn       80. ________

yoga at school. I love dancing so I have some injuries on my       81. ________

knees from which I was a kid. So I decide to try something        82. ________

soft. Simply stretching into different poses make me feel          83. ________

freely and quiet. At the meantime, the music is quite comforting.   84. ________

The class is relaxing after a whole day work." Bai said.            85. ________

Fe-Fe₃C相图：
(1)画出Fe-Fe₃C相图，并用组织组成物填写相图。
(2)依据此相图分析w_C=1.2%的铁碳合金自液相至室温的平衡转变过程，并画出此成分合金室温下的组织示意图。
(3)计算w_C=0.6%铁碳合金室温时相组成物的质量分数及组织组成物的质量分数。