In our class ______ of the students ______ girls.[ ]

A: three fifths; are

B: three fifth; are

C: three fifths; is

D: three fifth; is

癔症发作和癫痫大发作的鉴别要点有（）

A.癫痫大发作时意识存在

B.癫痫大发作时瞳孔多散大且对光反应消失

C.癫痫大发作有强直、痉挛和恢复三个阶段，呈有规律的抽搐

D.癫痫大发作常有咬破唇舌，跌伤和大小便失禁

E.癫痫大发作后能构回忆，脑电图检查没有特征性的改变