问题
单项选择题
北沙参在贮存中容易发生( )
A．风化
B．潮解
C．虫蛀
D．变色
E．气味散失
答案
参考答案：C
解析：[知识点] 饮片贮存中常见的变异现象
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北沙参在贮存中容易发生( )
A．风化
B．潮解
C．虫蛀
D．变色
E．气味散失
参考答案：C
解析：[知识点] 饮片贮存中常见的变异现象
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| What makes a successful speech? First, you should have a good speech script (稿子) so that your ideas and language can attract people's attention. And some skills are necessary, too. Here are some suggestions on giving great speeches: ◆Beat nerves Relax yourself before and when making a speech. Practice your openingsentence three or four times. This will help make a sure start and a successful speech. When you stand on the stage, think of the audience (观众) as your family members and friends. ◆Keep it natural Natural body languages will help your speech: smile, stand straight and look at the audience. Do not drop your head or play with a pen. Also, dressing yourself nicely will help the audience feel respected. ◆Pace and pause (节奏和停顿) Pace and pause add color to your speech. Speak fast enough to keep people excited and slowly enough for people to fully understand you. After an important point, pause for a moment. It'll change the atmosphere (气氛) in the audience. | |||||||||||||||
Tips on giving speeches
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