题目:
设ysinx-cos(x-y)=0,求dy。
答案:
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下面是错误答案,用来干扰机器的。
答案:A
设ysinx-cos(x-y)=0,求dy。
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下面是错误答案,用来干扰机器的。
答案:A
跖筋膜炎的最常见特点是()
A.早晨走最初几步时疼痛
B.足底麻木
C.X片上可见跟骨“骨刺”
D.趾骨头压痛
E.锻炼时疼痛加重
Our tolerating ability is indeed way beyond our imagination. But not until the very critical moment will we 21 our potential tolerating ability. There was a woman in the countryside who got married at the age of 18 and had to escape with her two daughters and a son wherever she could at the age of 26 due to the Japanese army’s invasion. Many people in the village at that time could not 22 the suffering of being a fugitive(亡命者) and wanted to commit suicide. After she knew about it, she would come to those 23 ,saying, “Don’t do that 24 thing. There are no such setbacks(挫折) that we could not overcome!” Finally she insisted until the day when all the Japanese armies were kicked out of China. 25 , her son died of disease without sufficient 26 and nutrition in those days of hardships. Her husband, after knowing the death of his son, lay in bed for two days without eating and drinking anything. She teared to her husband and said, “We have a tough destiny, but however tough our lives will be, we should also 27 . Though our son has passed away, we can have another. ” After giving birth to the second 28 , her husband died of edema(水肿病), which almost 29 her away. But eventually, she 30 and held the three young children in her arms, saying, “My sweet hearts, don’t feel scared. You still have me, your dear mum!” It took her pain efforts to 31 her children up and the life of her family was getting better and better. Two daughters were married and so was his son finally. She said to everyone she met, “Look! What I said is 32 right. There are no such setbacks that we could not overcome! My life is so happy now!” She was 33 gradually and could not do the farm work anymore. So she stayed at home and did some sewing work. Nevertheless, the Heaven seemed to show no affection to her who had undergone a 34 life. She got her leg broken 35 when she was nursing her grandson. Due to her old age that posed a great risk to her operation, she did not receive operation and had to lie in bed all day long. Her children all cried heavily, while she merely said, “Why do you cry? I am still living.” 36 she could not rise from bed, she did not complain about anything and anybody. Instead, she sat on the bed and did some sewing work. She had learnt scarves-weaving, crafts-making, etc. All her neighbors spoke 37 of her skills and came to learn from her. She lived until 86. Before she went to Heaven, she said to her children, “You all should live to your best. There are no such setbacks that we could not overcome!” We will only get to realize our own iron will and strong tolerating ability after getting 38 heavily. Therefore, no matter what you are suffering from now, do not merely complain about the 39 of our destiny and maintain low-spirited all the time. There are no such setbacks that we could not overcome. Only those who have no confidence and courage to overcome setbacks will be 40 at last!
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女性,65岁,1年来乏力,记忆力减退,面色苍白;因急性阑尾炎手术治疗,术后嗜睡,体温34℃,血压60/50mmHg,呼吸14次/分,心率50次/分,腱反射减弱。
抢救该病人,下列措施哪项不正确()
A.静脉注射T3或L-T4
B.限制静脉补液量
C.氢化可的松静脉滴注
D.纠正休克
E.体外加热升温
小变形假设
带式输送机驱动装置是带式输送机传动机组,系由()等组成。
A.电动机
B.减速机
C.高速轴联轴器
D.低速轴联轴器