某种观赏植物（2N=18）的花色受两对等位基因控制，遵循孟德尔遗传定律．纯合蓝色植株与纯合红色植株杂交，F₁均为蓝色；F₁自交，F₂为蓝：紫：红=9：6：1．现有两亲本植株杂交，子代的基因型及比值如图所示，则双亲的表现型及子代表现型的比例是（　　）

******强调指出：要坚持“老虎”“苍蝇”一起打，加强对权力的制约和监督，把权力关进制度的笼子里，形成不敢腐的惩戒机制、不能腐的防范机制、不易腐的保障机制。下列关于对权力的制约和监督的说法正确的是（    ）

①权力是否接受制约和监督是区分有威信与无威信政府的主要标志

②坚持用制度管权、管、事、管人是权力正确运行的重要保证

③有效制约和监督权力的关键是深化行政体制改革

④保障人民的知情权、参与权、表达权、监督权有利于实现对权力的制约和监督

    My name is Tom. I am____(九). I like____(白色的). It's a clean color. I have two basketballs. Look, they are____(在……下面) the bed. I think it's ____ (容易的) for me to play basketball. I always play it after class. Oh, what about my____(父母亲). My father____(喜欢) sports, too. He has____(一些) balls. You can see the balls____(到处) in his bedroom. My mother is a ____(教师). She doesn't____(有) any balls, she only watches sports games on TV.