She _____ some of the food for her husband and went out.
解方程3x+7=32-2x正确的是( )
3×2-3=____ 3×1=____
3×2+3=____ 3×3=____
岳飞受到人们的尊敬主要是因为( )
消化腺包括____、____、____、____、____.消化腺分泌的消化液中含有____,能促进消化道中的食物分解.