皮皮学，免费搜题
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搜题
【单选题】
无菌容器应定期消毒灭菌,一经打开,使用时间不超过多少小时A.
6
B.
12
C.
24
D.
48
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举一反三
【单选题】Why was the audience getting restless and tired? Because ______.
A.
the speech the businessman gave was too long
B.
the businessman gave three different speeches
C.
the businessman was giving the same speech once and again
D.
the businessman gave a wrong speech
【单选题】Why was the audience getting restless and tired? Because______.
A.
the speech the businessman gave was too long
B.
the businessman gave three different speeches
C.
the businessman was giving the same speech three times
D.
the businessman gave a wrong speech
【简答题】命名: 图片14.png
【单选题】What is the speaker getting ready to do?
A.
Have members of the audience try each piano themselves.
B.
Urge members of the audience to by upright pianos.
C.
Play each piano so the audience can listen to the difference.
D.
Open each piano and let the audience see how they are strung.
【简答题】List the techniques recommended in the text for getting the attention and interest of the audience.
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