下图的4个家系,带阴影的为遗传病患者,白色表现正常。下列叙述正确的是:
A:可能是色盲遗传的家系是甲、乙、丙、丁
B:肯定不是抗维生素D佝偻病遗传的家系是甲、乙
C:家系甲中,这对夫妇再生一患病孩子的几率为18
D:家系丙中,女儿一定是杂合子
如图,已知△ABC和△A′B′C′是位似比为2的位似三角形,且AB的对应边是A′B′,请用尺规作图,将△A′B′C′补充完整(可不写作法,但保留作图痕迹).
Dear Dad, Happy birthday to you ! On this special day I'd like to talk to you1a special way. I don't think I am good at2you my thought face to face with you,so I'm writing to show my deep love for you.You're not a rich man or a famous person.But in my heart,you are one of the greatest3 in the world.I am4 you. You are5 interested in fame and wealth.You do6 things like paying phone bills on time,and working as a worker in your factory.The smile on your face shows you are pleased with the family.You take good care of my grandparents.You help me with my schoolwork and do some shopping with Mom on Sundays. In the past,I didn't care7 you were with me or not.Now I am sorry to say I8 you the respect before.But I am thankful for what you have done for me. I am quite lucky that I have9 a great father.And I feel happy that now I can let you10 how much I love you.You are successful as a son,a husband,a father,and a friend. Wish you happy forever! Yours,
David
党的十八届五中全会明确提出,“坚定文化自信,增强文化自觉,加快文化改革发展”。为此需要( )
①把发展文化事业作为文化建设的中心环节
②坚持以社会主义核心价值观为引领
③推动文化产业成为国民经济支柱产业
④提高文化开放水平和国家文化软实力
刚升入初中的王海,在回家的路上遇到同班同学张群被几个社会青年围劫。你认为此时王海正确的做法是( )
①与坏人奋勇搏斗 ②在确保自身安全的前提下,做力所能及的事
③记住坏人特征,及时向公安机关报告 ④保护好自己是一切的前提