Which of the following statements about English Public Speaking is TRUE（）
A. One’s language competence decides the performance in a public speech
B. Public speaking gives speakers the chance to exchange ideas
C. Flowery language is more important than content in a public speech
D. Public speech is a platform to voice out thoughts
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执行下面程序段，对运行结果描述正确的是 。import tensorflow as tfa = tf.constant（1234567, dtype=tf.float32）tf.cast（a, tf.float64）（）A．
与Epitope同义的是（）
A. Hapten
B. Superantigen
C. Antigen determinant
D. Carrier
E. Isotype
[ ] belives that development is predetermined at birth, by heredity and biological factors, while [ ] believes that development is affected by experience and other environment（）
A. Opinion of Nature, Opinion of Nurture
B. Opinion of Nurture,Opinion of Nature
C. Opinion of Nurture,Opinion of Nurture
D. Opinion of Nature,Opinion of Nature
Which statement is true about a corporate culture（）
A. It determines a company’s collective behavior
B. It determines technology and production failure
C. It is what a company is trying to change
D. It is what a company finds weak and poor
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