简答题What techniques can you use to end your presentation naturally? A、Restating the purpose of your talk. B、Giving a clear summary of the main points. C、Thanking your audience. D、Giving the audience a chance to ask questions.简答题Which of the following is not a feature of a good opening? A、The presenter gives a structure of his/ her presentation. B、The presenter introduces himself/herself. C、The presenter introduces the topic. D、The presenter thanks the audience for their patience.简答题A reading speaker is interesting for the audience.简答题What are the requirements for preparing a presentation? A、Planning delivery. B、Adjusting the content according to the given time. C、Considering your audience. D、Rehearsing your presentation.简答题We should keep(1) in mind when planning a speech delivery.简答题When the chairperson makes a complementary introduction about the speaker, it is better for the speaker to express thanks to the chairperson.简答题" I am convinced that " is a very strong expression to show that the speaker is sure of his or her opinion.