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《Y 教学法对 HSK 成绩的促进效用:一个实验研究 》 1. 提出假设: Y 教学法 对提高 HSK 成绩是有效的(正假设)。 2. 选择 被 试: 将某高校的某一个 HSK 辅导班作为被试。 3. 前测: 对被试进行了一次 HSK 测试,并统计出其 HSK 成绩的平均数 N1 。 4. 实验处理: 用 Y 教学法进行教学。 5. 后测: 一个学期后,对被试进行一次 HSK 测试,并 统计出其 HSK 成绩的平均数 N2 。 6. 数据分析: 通过对比学生前测和后测中 HSK 成绩的平均数来确定 Y 教学法是否有效。如果 N2 高于 N1 ,且具有统计学意义上的显著差异,就说明 Y 教学法是有效的。反之,则不能说明。 案例4是一个教学法的实验研究,在对定量研究方法进行学习后,请大家分析这个案例的实验设计,并评价这样的实验设计是否可行。
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【单选题】Which of the following statements about the characteristics of debt and equity is false?
A.
They can both be long-term financial instruments.
B.
They can both be short-term financial instruments.
C.
They both involve a claim on the issuer's income.
D.
They both enable a corporation to raise funds.
【单选题】Which of the following statements about the characteristics of debt and equity is untrue?
A.
They can both be long-term instruments.
B.
They both involve a claim on the issuer's income.
C.
They can both be short-term instruments.
D.
They both enable a corporation to raise funds.
【单选题】Which of the following statements about the characteristics of debt and equity is FALSE?
A.
They can both be long-term financial instruments.
B.
They can both be short-term financial instruments.
C.
They both involve a claim on the issuer's income.
D.
They both enable a corporation to raise funds.
【单选题】Which of the following statements about the characteristics of debt and equity are true?
A.
They both can be long-term financial instruments.
B.
They both involve a claim on the issuer’s income.
C.
They both enable a corporation to raise funds.
D.
All of the above.
E.
Only (a) and (b) of the above.
【单选题】天津市河东区201 4年高三二模考试）15. It was not until 1965_______liberated.
A.
that was the town
B.
did the town
C.
was the town
D.
that the town was
【单选题】It was not until 1920____ regular radio broadcasts began.
A.
while
B.
which
C.
that
D.
since
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