题目

I was 18 years old, fit, strong and ambitious. One day, I fell down for no _________reason. I saw many different specialists and was finally diagnosed with limb girdle muscular dystrophy (MD).It was a very difficult time. I had no idea what life was going to_________at me and I was scared. By my late 30s it was_________and I had transitioned (转变) from a walking stick to a wheelchair. I wanted to be master of my own_________, so I had to recognize my_________and play to my weaknesses. What I wanted to make_________was a trip to the north pole.People with MD feel the cold. So why did I want 如图是排卵、受精、受精卵发育、植入子宫内膜的连续过程，试回答下列问题．（1）填写下列标号的器官名称：① ，② ，③ ，④ ．（2）精子和卵细胞结合的场所是 ；胚胎发育的场所是 ．（3）器官④的功能是 进入和 产出的通道．