某小学有教师32人,学生451人。全校师生参加浇树话动,如果每50人分成一组,最多够分成几组?
(32+451)÷50=9(组)……33(人) 最多够分成9组。
He has changed his ______. He 'll go to the countryside instead of the city. [ ]
A.way
B.decision
C.mind
D.attention
具有同质多晶型的脂溶性基质是()
A.可可豆脂
B.全合成脂肪酸甘油酯
C.甘油明胶
D.聚乙二醇类
E.液体石蜡