题目内容

可导函数的极值点必为函数的驻点.( )

A. 对
B. 错

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"Feminism" is an informative speech topic of ______

A. Object
B. Event
C. Process
D. Concept

Which of the following strategies can help avoid abstractions in informative speechmaking?

A. Giving more details when giving an example
B. Using descriptions to communicate internal feelings
C. Using comparisons to state similarities
D. Using contrasts to state differences

Personal terms such as "you" and "we" can help the speaker better

A. communicate more information
B. relate the topic to the audience
C. get audience's attention
D. describe things clearly

Which of the following are presented as guidelines for effective informative speaking?

A. use technical language to enhance your credibility
B. avoid personal words such as 'I", "we","you"
C. relate the topic directly and personally to your audience
D. use descriptions to communicate message and feelings

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