Q&A section is considered most difficult part in the speech is because you never know what questions will be asked and almost have no time to prepare for it.
查看答案
The best answer to the question should be long enough so that you can make yourself keep talking.
A. 对
B. 错
Look over your prepared speech and anticipate possible questions about it.
A. 对
B. 错
从语音的物理属性看，普通话中的声调主要是由语音的（）变化决定的。
A. 音高
B. 音强
C. 音长
D. 音色
从语音的物理属性看，普通话中的轻声主要是由语音的（）变化体现的。（本题为多选题，正确答案有三项）
A. 音高
B. 音强
C. 音长
D. 音色
微信支付 
支付宝支付