对于那些并不具备定义良好特征的概念,可以通过如下哪种方式加以学习?()
A.提供概念规则
B.建立原型
C.提供概念属性
D.提供概念
参考答案:B
该小儿的护理措施不妥的是
A.给予高动物蛋白、无渣的流质饮食B.保持皮肤清洁,防止出血和感染C.除去可能存在的致敏原D.保持患肢功能位置E.观察有无腹绞痛、呕吐、血便
Optimism is the art of always seeing the glass half full (1) half empty, finding something positive in even the most (2) of situations and last but not least the ability to expect the best even if the chances are (3) . It enables you to try new things, deal with failure as a learning experience (4) a stopping point. In general optimism gives you a reason to live. The world would be a better place if it was full of optimism, (5) unfortunately the trend in today’s youth is (6) the opposite way. Today it is (7) to be pessimistic. One could spend hours discussing how we arrived at this point, (8) our youth refuses to smell the roses and instead prefers to (9) themselves on their own pessimistic (10) .
Optimism is not an (11) gift but rather a learned behavior (12) . Like most behaviors optimism is best learned by watching examples, (13) you. The first step in creating a generation of people with a positive outlook on life, is to (14) life on the bright side yourself. (15) it would be wrong to (16) your child from all negativity, it is important that you are not the (17) of doubts and worries. Finding something positive in a negative situation needs to be (18) Show how to make the best of things by always (19) the positive, by encouraging your child after a(n) (20) and by explaining over and over that failure is just a part of progress.
18()
A.accomplished
B.trained
C.experienced
D.practiced