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【单选题】
静定结构的几何特征是( )。A.
无多余约束
B.
几何不变体系
C.
运动自由度为零
D.
几何不变且无多余约束
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举一反三
【单选题】What does it mean for a presentation to be audience-centered?
A.
the presenter assumes what the audience wants to hear.
B.
the presentation is centered on the topic.
C.
the presenter researches the audience's demographics, needs, motivations and characteristics.
D.
the presenter lets the audience members ask questions at the end.
E.
the presentation starts off with audience questions.
【判断题】'To persuade my audience that capital punishment does not deter people from committing crimes such as murder: is a specific purpose statement for a persuasive speech on a question of policy.()
A.
正确
B.
错误
【单选题】The magician's talk creates a(n) ______ of attention so that the audience does not see how he does his tricks.
A.
diversion
B.
derivation
C.
disorder
D.
interference
【简答题】So loudly _________ that the audience in the back heard him clearly. [A]does he speak [ B]he speaks [ C] did he speak [ D] he spoke
【单选题】What does the speaker suggest?
A.
He does not recognize many members of the audience.
B.
He hopes to expand the company's product line.
C.
He has worked in a number of industries.
D.
He is grateful to his colleagues.
【单选题】_____ by a large audience, he felt very nervous and didn't know what to say.
A.
Watching
B.
Watch
C.
Watched
D.
Having watched
【单选题】Mike finds reading English newspaper _______, because there are lots of new words.
A.
frustrating
B.
exciting
C.
interesting
D.
happy
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