精神病人包括间歇性的精神病人，在不能辨认或者不能控制自己行为的时候违反治安管理的，不予处罚，但是应当责令其监护人严加看管和治疗。( )
参考答案：对
比重比水小的东西会浮在水面上，比重比水大的物体则会沉入水底。木头与铁块绑在一起后沉到了水底，由此可知（）。
A．木头与铁块的比重都比水大
B．该木头与铁块的平均密度比水大
C．木头的比重比水小
D．铁的比重比水大
Directions:
Suppose you lived at the Rehabilitation Center and were under tender care. You write a letter to extend your thanks to your staff’s consideration.
Begin your letter as follows:
Dear staff,
You should write about 100 words on ANSWER SHEET 2. Do not sign your own name, using "Li Ming" instead. Do not write the address.
