犬也存在色盲性状。如图为某一品种犬的系谱图(涂黑表示色盲)。请据图判断此品种犬色盲的遗传方式不可能是

为了探索生命起源的问题，各国科学家进行了多种实验，比较著名的实验是米勒模拟原始地球条件合成有机物的实验。米勒设计了一套装置，他先将装置中的空气抽出，然后通入甲烷、氨、水蒸气等，并在装置中多次连续火花放电，经过了一段时间，在装置中检验出了氨基酸等有机小分子物质，他为探索生命起源作出了巨大的贡献。根据以上提供的材料回答问题：
（1）向实验装置中通入的甲烷、氨、水蒸气等气体相当于原始地球表面的____ ，与现在的大气成分相比，其主要区别是不含有____ ；在装置中多次连续火花放电相当于原始地球上的____ 现象；实验装置中检验出的氨基酸是一种____ 物质，在实验装置里形成的液体相当于____ 。
（2）米勒的这个实验表明了：在原始地球的条件下，由____ 物质形成____ 物质是可能的。

—The supermarket is crowded（拥挤的）. There are ___________ people there.
—Yeah, and the things there are always ______________ expensive（贵的）.

   Miracles（奇迹）will happen if you don’t give up trying. Even if you have1 for one hundred times, you may succeed when you try for the 10lst time.
   When I was born, my doctor told my mother that there was something wrong with my2 .  They were too soft to be able to walk. Although the news was bad, my mother didn’t become 3. She didn’t believe what the doctor said 4started to look for other ways.
   My mother kept looking for other doctors for me, and finally she5 . The doctor and his team in the hospital did 6they could to help me. They also asked my parents to teach me to do some 7to help me walk. One day when my mother came to pick me 8  . I crawled(爬) towards her. She was so surprised and happy that she couldn’t believe9  eyes. Crawling was not walking, but it was a good 10 . Day by day, I could walk by myself.
   When I grew up, my mother 11  told me these stories. She said that if I thought of what she said whenever I met 12 , I could do anything successfully. I have been working hard and I have turned out to be a very 13 person.. I get best grades in school and I am a good dancer and swimmer. 14 my mother’s strong resolution, I live a happy life now. What the story tells us, as my mother always says, 15: Never give up.