A:工匠优秀,积极性高
B:生产不计成本
C:市场需要高质量的产品
D:国家权力的支持
Zhao Pei has to learn ____ (play) the piano on weekends.
∫12(1x+x)dx=( )
— __________ try some fish? It looks delicious.
— It smells __________. I don't want to eat it.