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【单选题】
从物理学角度看,下列声音不属于噪声是A.
汽车喇叭的鸣叫声
B.
车间内机器的轰鸣声
C.
炮弹的爆炸声
D.
.收录机里传出的歌声
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反馈参考答案：
举一反三
【单选题】—Why are you so ? —I am watching an basketball match. [ ]
A.
excited ; exciting
B.
exciting ; excited
C.
exciting ; exciting
D.
excited ; excited
【多选题】用“波特五力模型”来分析行业市场，就是要从五个方面来对市场进行全方位的分析，包括（）
A.
新进入者的威胁
B.
同行业内现有竞争者的竞争能力
C.
供应商的讨价还价能力
D.
购买者的讨价还价能力
E.
替代品的威胁
【单选题】I am so _____ when I heard the ________ news.
A.
excited; excited
B.
excited; exciting
C.
exciting; exciting
D.
exciting; excited
【多选题】波特五力模型分析法用来分析行业市场的竞争格局，它认为市场存在五种力量，分别是（ ）。
A.
供应商的讨价还价能力
B.
购买者的讨价还价能力
C.
新进入者的威胁
D.
替代品的威胁
E.
行业内现有竞争者的竞争
【多选题】波特五力模型分析法用来分析行业市场的竞争格局，它认为市场存在五种力量，分别是（ ）。
A.
供应商的讨价还价能力
B.
购买者的讨价还价能力
C.
新进入者的威胁
D.
替代品的威胁
【单选题】—Why are you crying? Today is your birthday! —____________. I am so excited with so many friends surrounding me.
A.
Just can’t help it
B.
Don’t mention it
C.
None of your business
D.
That’s all right
【单选题】—Why are you crying? Today is your birthday! —____________. I am so excited with so many friends surrounding me.
A.
None of your business
B.
Don’t mention it
C.
Just can’t help it
D.
That’s all right
【单选题】听力原文：W: I am so excited just to think about it! This is my first trip to Paris. I want to visit all the interesting places there. But I am afraid that I can't find my way around there. M: Don't worry ...
A.
To take her to Paris.
B.
To show her what the interesting places are.
C.
To serve as her guide.
D.
To introduce her to his families.
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