A:促进了产销一体化
B:节约了社会劳动
C:提高了商品的价值量
D:加快了商品的流通
下列加线字的字音和字形全部正确的一项是( )
--- What about playing ______football after school?
--- I'm afraid I can't. I have to practice playing ______ piano,
①32+24=____
②4×6=____
③56-30=____
④1×3+10=____
⑤7+73=____
⑥72-9=____
⑦12+6=____
⑧2×5-3=____