This Saturday we don't go to school．But Jill has a____．She can't go to play with us．Soon she has a____．We take her to the____by car．The doctor looks over her．The doctor says she can have a good rest and____ a lot of water and she will get ____soon．
①A和B所属周期数之差为（填具体数字）____．
②A和B的核电荷数之差为（用含m或n的式子表示）____
③B和A的族序数之差为____．
下半阕末尾三句表现了词人什么样的情绪?是如何表现的?请简要阐述。
在一个不透明的口袋中装有5个完全相同的小球，把它们分别标号为1，2，3，4，5，从中随机摸出一个小球，其标号是奇数的概率为（ ）
