小志很喜欢看武打片,经常将影片中的暴力镜头重现到自己的日常生活中。这可以用( )进行解释。
A. 试误说
B. 强化原理
C. 观察学习
D. 普雷马克原则
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“学习的过程就是尝试错误的过程”。这一观点属于哪种学习理论?( )。
A. 行为主义
B. 认知主义
C. 人本主义
D. 建构主义
Toward a Brighter Future for AllGood afternoon! As president of the university, I am proud to ___________ you to this university. Your current achievement is the __________ of years of hard work. Here, you may encounter things you do not expect. But remember: Your future success is built on a solid ____________ of the past.For you, the next four years will be a time unlike any other. You are provided with great ___________ and the freedom to explore new subjects and ________ new passions. What you need to do is to _________________ this unique experience, and to use your energy and enthusiasm to ______________ of this opportunity. You may also feel _____________ by the wealth of courses available. My advice is:____________ yourself! You should _______ new subjects, cultivate new interests, and pursue new passions. Besides, there also may be many _____________ experiences as well as pleasant ones here at the university. But the latter will ___________ the former. All of them will become valuable lessons to _______ your lives. So, get ready to meet these new experiences optimistically. At last, with ______________ opportunitiesthere also come _________________. You should bear the expectations and responsibilities as you __________ and pass on the spirit of hard work, and _________ and transmit knowledge.We take ___________ in the many opportunities you will find here and in the responsibilities you will carry as __________ of your communities, your country, and the world. Welcome!
如一国棉布的名义关税税率为30%,纺织品的最终产品“增值”部分为40%,则该种产品的有效保护率是()
A. 30%
B. 40%
C. 75%
D. 5%