脑电图示双侧对称3周/秒棘-慢波或多棘-慢波提示癫儿发作类型为()
A.强直性发作
B.阵挛性发作
C.失神发作
D.肌阵挛发作
E.无张力性发作
参考答案:C
Tom was thrilled captain of our school football team. [ ]
A. to choose
B. having been chosen
C. to have been chosen
D. to be chosen
简述处理班级偶发事件的方法。