—What's your new home like?
—_______________________.
A:It's near my school.
B:It's large and comfortable
C:I love my new home
D:I live with my parents
7.3+2.7=____ 0.91-0.9=____ 12.7-12.6=____
4.8+5.6=____ 6.8-3.2=____ 6.4+4.2=____
结合材料,运用民主管理的相关知识,说明加强和完善城乡社区治理的意义。