皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
As the pace of life continues to increase , we are fast losing the art of relaxation. Once you are in the habit of rushing through lift, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is a natural part of everyday lift and there is no way to avoid it. In fact , it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health. The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, In whatever form, we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot remove stress from our lives (it would be unwise to do so even if we could),we need to find ways to deal with it.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】下图为植物细胞亚显微结构模式图,请据图回答: 若该细胞是西瓜果肉细胞,糖类主要存在于[]()中。
【简答题】糖类主要存在于植物性原料中 , 以 ________ 最为丰富 , 蔬菜、水果中含量也较多。
【判断题】糖类主要存在于植物性原料中,其中以水果最为丰富。
A.
正确
B.
错误
【多选题】股骨干斜形骨折骨折端刺破皮肤,属于
A.
完全性骨折
B.
开放性骨折
C.
不稳定性骨折
【多选题】股骨干斜形骨折骨折端刺破皮肤,属于
A.
完全性骨折
B.
开放性骨折
C.
不稳定性骨折
D.
病理性骨折
【多选题】股骨干斜形骨折骨折端刺破皮肤,属于哪种类型的骨折
A.
完全性骨折
B.
开放性骨折
C.
不稳定性骨折
D.
病理性骨折
【简答题】(12分)铁及其化合物在生活生产中有重要的应用。请回答下列问题: (1)铁制品在空气中易锈蚀,其实质是铁与空气中的氧气、 等接触后发生化学反应的过程。 (2)在盛有氧气的集气瓶中点燃细铁丝发生剧烈燃烧的化学方程式是 。为防止集气瓶破裂,常采取的措施是 。 (3)把铁粉和铜粉的混合物放入硝酸银溶液中,充分反应后,过滤,为确定滤渣和滤液的成分,甲同学向滤渣中滴加稀盐酸,无气泡产生; 乙同学向滤液中滴加...
【多选题】股骨干斜形骨折骨折断端刺破皮肤,属于
A.
完全性骨折
B.
开放性骨折
C.
不稳定性骨折
D.
病理性骨折
【简答题】下图表示动物、植物细胞二合一亚显微结构模式图。根据图回答: 在西瓜果肉细胞中,糖类主要存在于[]();
【单选题】糖类主要存在于( )
A.
植物性原料
B.
动物性原料
C.
矿物性原料
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题