示范试验法的优点不包括哪一个？ The advantage of demonstration-performance method does NOT include that __.
A.学员能够参与，积极性高 students have high enthusiasm
B.教员能够及时了解学员状态 teachers can understand students status in time
C.有利于反映概念及过程 it can reflect the concept and process
正确答案是C