【多选题】提高制皂油脂质量可通过( )等工艺完成。
【单选题】Tommy believes his employees are responsible, creative, and able to work with minimal direction. He is a:
D.
contingency theory manager.
【简答题】It is/was the first time (that) Tommy has/had talked back to his parents.
【单选题】One day his father was surprised to see Tommy, because his father thought
A.
he should be studying in school
B.
the school should be closed
C.
the teacher said something to Tommy
【判断题】油脂皂化值是在规定条件下皂化1g油脂所需氢氧化钠的质量。
【单选题】Tommy had his big brother _____ his shoes for him.
【单选题】评价是另一个护理程序的开始,评价可理解为( )
【多选题】化学脱脂就是利用碱溶液对皂化性油脂的皂化作用或表面活性物质对非皂化性油脂的乳化作用,除去工件表面上各种油污的过程。下面哪些属于化学脱脂用品?