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【单选题】
Teaching is supposed to be a professional activity requiring long and complicated training as well as official certification. The act of teaching is looked upon as a flow of knowledge from a higher source to an empty container. The student's role is one of receiving information; the teacher's role is one of sending it. There is a clear distinction assumed between one who is supposed to know (and therefore not capable of being wrong) and another, usually younger person who is supposed not to know. However, teaching need not be the province of a special group of people nor need it be looked upon as a technical skill. Teaching can be more like guiding and assisting than forcing information into a supposedly empty head. If you have a certain skill you should be able to share it with someone. You do not have to get certified to convey what you know to someone else or to help them in their attempt to teach themselves. All of us, from the very youngest children to the oldest members of our cultures should come to realize our own potential as teachers. We can share what we know, however little it might be, with someone who has need of that knowledge or skill. Select the statement that best expresses the main idea of the paragraph.
A.
The author believes that it is not difficult to be a good teacher.
B.
The author believes that every person has the potential to be a teacher.
C.
The author believes that teaching is a professional activity requiring special training.
D.
The author believes that teaching is the flow of knowledge from a higher source to an empty container.
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【单选题】( )指以用户为中心,遵循用户的运营目标需求和设置运营活动与规则制定战略与运营。
A.
用户运营
B.
媒体运营
C.
新媒体运营
D.
客户运营
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A.
由:H + (aq) + OH - (aq) = H 2 O(l)△H = -57.3kJ/mol,可知:含0.5mol H 2 SO 4 的浓溶液与含1molNaOH的溶液混合,放出热量大于57.3 kJ
B.
从C(石墨)= C(金刚石) △H =' +' 119kJ/mol,可知:金刚石比石墨更稳定
C.
等质量的硫蒸气和硫固体分别完全燃烧,后者放出热量更多
D.
没有单质参加的化合反应可能为氧化还原反应,也可能为放热反应
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A.
正的;
B.
负的;
C.
可正可负
D.
无意义.
【单选题】下列说法中不正确的是( )。
A.
内含报酬率是能够使未来每年现金净流量现值等于原始投资额现值的折现率
B.
内含报酬率是方案本身的投资报酬率
C.
内含报酬率是使方案现值指数等于0的折现率
D.
内含报酬率是使方案净现值等于0的折现率
【单选题】下列说法中不正确的是( )
A.
内含报酬率是能够使未来每年现金净流量现值等于原始投资额现值的折现率
B.
内含报酬率是方案本身的投资报酬率
C.
内含报酬率是使方案净现值等于零的折现率
D.
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A.
正确
B.
错误
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A.
正确
B.
错误
【单选题】应付款系统与应收款系统可以进行如下处理__ __。
A.
冲应收转账。
B.
凭证。
C.
导出数据。
D.
付款结算情况。
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