区别植物油和矿物油的正确方法是()
A.加酸性高锰酸钾溶液,振荡
B.加NaOH溶液,加热
C.加新制氢氧化铜悬浊液,加热
D.加溴水、振荡
参考答案:B
性格不仅影响学习是否发生,而且影响学习方式。
He doesn't have _____ furniture in his room-just an old desk. [ ]
A. any
B. many
C. some
D. much