为悼念在战争或其它灾难中的死难者，许多国家都设立悼念活动日。2014年我国将12月13日定为国家公祭日，是因为1937年的这一天（   ）

“一个和尚挑水喝，两个和尚抬水喝，三个和尚没水喝”。这个故事告诫我们（    ）

①能发生加成反应；

②能溶解于NaOH溶液中；

③能水解生成两种有机物；

④不能使溴水褪色；

⑤能发生酯化反应；

⑥有酸性．

    I am looking at an old friend of mine.

    He has been one of my best____(friend )for almost 12 years. He has blessed my life with his loyalty, kindness____(wise) and love since the day when I first met him____doesn't matter to me that he has four legs instead of two, fur instead of clothes, and barks at me instead of talking to me.

    As I watch my friend sleeping____the sun, I cant help____(think) of all the goodness he has brought into my life. He has been with me every day through good and bad times. He has always been my protector. He has always reminded me that I am loved and showed me how____(love)others at the same time.

    My friend has aged far____(quickly)than me and had more and more health problems over the years. I am not sure how long we will be together before he ____(pass)away from this world.

    This ____(wonder)dog has helped me understand that you don't have to be perfect to be loved and____poor health and old age might affect the body but they don't have to decrease the spirit.

父母是双眼皮，基因为Aa,他们生了一个单眼皮的孩子，这孩子的基因是（　 ）