A:钢铁工业
B:机械工业
C:石油工业
D:畜牧业
关于质量和密度,下列说法中正确的是( )
已知扇形所在圆的半径为8,弧长为12,则扇形的圆心角为弧度____
要求:1.包括所有要点,并做适当发挥。2.条理清晰、字迹工整。词数90词左右。
Name
Kitty
Age
15
School
Sunshine Secondary School
Grade
8
Personality
kind, helpful, hard-working
Hobbies
do sports, travel, read books about all kinds of animals
Working experiences
take good care of homeless animals, raise money for Save China's Pandas
Feeling(s)
…
Dream(s)