题目内容

酶的催化作用特点是

A. 酶的催化作用不受调节
B. 酶具有极高的催化效率
C. 酶对催化的底物有选择性
D. 酶与底物的结合是不可逆的
E. 酶的催化能力不稳定

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What is the most important quality that characterizes a good speech?

A. well-polished language
B. interesting opening
C. smooth flow of information
D. valuable ideas to share with

Which one is not one of the Cs that makes a great speaker?

A. character
B. charisma
C. confidence
D. content

‏Which is NOT a tip that that you can utilize to overcome stage fright when giving a public speech?

A. recite the speech many times to make sure you can remember every word
B. choose the appropriate topic with which you are familiar
C. believe that most listeners are not fault-finding
D. prepare thoroughly and visualize your success

Which should you try to avoid when giving a public speech?

A. The main focus of your performance is on expressing your ideas, presenting information, or telling your story rather than on yourself.
B. Rehearse your speech before the delivery.
C. You see the role of the audience as judges who are evaluating how good of a presenter you are.
D. You’d better pay more attention to your relationship with your audience than your content.

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