红绿色盲为伴X染色体隐性遗传病，抗维生素D佝偻病为伴X染色体显性遗传病。调查某一城市人群中男性红绿色盲发病率为M，男性抗维生素D佝偻病发病率为N，则该市妇女患红绿色盲和抗维生素D佝偻病的概率分别（ ）

的分数单位是____，这个分数包含____个这样的分数单位．

根据短文内容，用方框中所给的单词的正确形式填空，使短文通顺、完整。

    In1997, Bobbi McCaughey gave birth to seven babies. They all survived(存活). This autumn, McCaughey's children are preparing to have ____18th birthday.

    Eighteen years ago, the birth of McCaughey's seven children was huge news across the world. Bill Clinton, American President at that time,____ the family and congratulated them. Doctors worried that they wouldn't survive their first few days, but they did. Many people helped them and they grew up____.

   "Somany things have happened in 18 years. All the happiness and ____are special to us,"said Mum Bobbi McCaughey. Now her children are____to graduate from high school.

动物的行为是指动物的动作，因此静止不动的动物不具备动物行为。