问题
单项选择题
吗啡的适应症是
A．分娩止痛
B．支气管哮喘
C．心源性哮喘
D．颅脑外伤疼痛
E．感染性腹泻
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
吗啡的适应症是
A．分娩止痛
B．支气管哮喘
C．心源性哮喘
D．颅脑外伤疼痛
E．感染性腹泻
参考答案：C
Once my mother told me a story that in Africa, when an antelope (羚羊) wakes up every morning, the first thing it thinks about is, “I must be 36 to run faster than the fastest lion, or I will be killed.” 37 , a lion wakes from his dream. The first thing the lion thinks about is, “I must be able to catch the 38 antelope, or I will starve to 39 .” So almost simultaneously(同时地), the antelope and the lion get up and start running toward the 40 sun. This is 41 : full of chances and challenges. Whether you are an antelope or a lion, you must go 42 when the sun rises. For students, it is just the same. If we don’t study hard, sooner or later, we will 43 the other students. At first I didn’t know what the word “exam” 44 . Later, I knew an exam was a kind of 45 . In competitions, there are always winners and 46 . As I grew up, I got to know competition well. In one’s life, there must be competitions, so people can 47 . Each time I saw children playing games and heard their 48 , I wished I were that age again. 49 , I remembered my parents’ words: You must work very hard for a good future. So I 50 my pen and began to study hard again. I was still not sure what competition 51 meant. One day, I was 52_in an English-speaking competition. When I went to the stage, I saw other students looking at me kindly. Suddenly I 53 what competition was. It is not as cruel as my teacher and parents told me. In fact, competition is the 54 : it is kind and necessary. I learned a lot from realizing this 55 . Now I understand better about the world. Competition is important for us all.
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