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【单选题】
某航空公司制定战略规划时,分析了铁路对航空业的影响,按照波特五力分析模型,这一分析所考虑的竞争因素属于( )A.
潜在竞争者
B.
行业内现有竞争者
C.
有实力的竞争者
D.
替代品生产者
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举一反三
【简答题】They have a good knowledge of English but little _______they know about German. A. have B. did C. had D. do
【单选题】They have a good knowledge of English but little _____ they know about German . [ ]
A.
have
B.
did
C.
had
D.
do
【单选题】关于桑叶的表述不正确的是
A.
经霜者效果更佳
B.
先端渐尖，基部截形、圆形或心形，边缘有锯齿或钝锯齿
C.
叶脉突出，平行叶脉，脉上无毛
D.
质脆，气微，味淡、微苦涩
【简答题】吸附架桥作用主要是指高分子有机聚合物与粒胶的_______和________。
【单选题】关于桑叶的表述不正确的是
A.
经霜者效果更佳
B.
先端渐尖，基部截形、圆形或心形，边缘有锯齿或钝锯齿
C.
叶脉突出，平行叶脉，脉上无毛
D.
质脆，气微，味淡、微苦涩
E.
边缘有锯齿或钝锯齿
【简答题】吸附架桥作用主要是指高分子有机聚合物与粒胶的()与()
【简答题】Although many Chinese students say they have a good knowledge of English grammar, most would admit(承认) that their spoken English is poor. Whenever I speak to Chinese students, they always say, “My spo...
【单选题】From the conversation we can deduce that______.
A.
they have a good beginning of trading
B.
they are eager to know each other
C.
they want to shake hands in Beijing
D.
they hate the barriers between them
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