属于行为障碍或异常的是（）。
A.口吃
B.多发性周围神经炎
C.进行性肌营养不良
D.儿童擦腿综合征
E.注意缺陷多动障碍
参考答案：A, D, E
与抗原结合后，激活补体能力最强的是（）
A.IgA
B.IgD
C.IgE
D.IgM
E.IgG
根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。
小题1:What do you like to do in your f______(空闲的) time?
小题2:I could hear her sweet v______ (噪音) from the next room.
小题3:Travelling by plane is expensive, but it s______ (节省) time.
小题4:Would you please make a shopping l________ (清单) for the picnic?
小题5:It's polite to k______ (敲) on the door before entering a room.
