The function of the intruction in a speech includes（）
A. Gaining the attention of the audience
B. Gaining the good will of the audience
C. Stating the purpose of the speech
D. Previewing the structure of the speech
下列分子的稳定性强的是（）
A. HF
B. HI
The proper idea for demonstrative speech is（）
A. Karate techniques
B. My Favorite Misheard Song Lyric
C. What is the average salary in different countries and what causes the difference
D. Should there be stronger limits on immigration
The TED speech “When do kids start to care about other people’s opinion？” belongs to（）
A. Oratorical Speech
B. Debate Speech
C. Informative Speech
D. Entertaining Speech
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