问题
问答题
华法林是一种治疗心脑血管疾病的药物，可由化合物E和M在一定条件下合成得到（部分反应条件略）。
答案
参考答案：丙炔 加成反应
解析：
搜题请搜索小程序“爱下问搜题”
华法林是一种治疗心脑血管疾病的药物，可由化合物E和M在一定条件下合成得到（部分反应条件略）。
参考答案：丙炔 加成反应
解析：
Have you ever complained why life is so tiring? Does the sky sometimes seem dark to you? Are your lessons sometimes not successful? Well, friends, cheer up and 15 all the time. If you see the world with your warm heart, you’ll 16 the whole world smiling to you. On a sunny morning, you plan to have a walk 17 yourself. Just before you go out, it suddenly starts to rain. Maybe you would feel very sad and start to complain about the weather. But dear friends, why 18 sit down and listen to the free concert that the nature brings you? And with the timely rain, crops（庄稼）in the fields will grow better and farmers will have a good harvest（收成）. Everyone wants to succeed in what he tries to do, 19 life isn’t a bed of roses. It’s very common to meet difficulties on the way 20 success. In fact, difficulty isn’t terrible. The real terrible thing is that we are afraid of it. Difficulty is like spring（弹簧）. If you are 21 , it will be strong. Attitude（态度） decides 22 . With an optimistic (乐观的) attitude, life is easy and 23 . So when you meet difficulties, don’t give up. Instead, you should face them with a smile. Remember these five rules: Free your heart from hate; Free your mind from worries; Live an easy life; Give more; Expect 24 .
|