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【多选题】
五力模型又称竞争力模型,用于行业(产业)环境分析的一种工具,该模型认为企业竞争优势是由产业结构决定的,而产业结构是由五种竞争力所决定,这五种作用力分别来自于( )
A.
行业新加入者的威胁
B.
现有竞争者之间的竞争程度
C.
替代产品的威胁
D.
购买商讨价还价的能力
E.
供应商讨价还价的能力
F.
政府
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【单选题】Gas has become so cheap that it can be _____________ coal as an electricity-generating fuel.
A.
groped for
B.
substituted for
C.
applauded for
D.
strived for
【简答题】A town in Oxfordshire has become the first in the UK to have biomethane(生物甲烷)gas from human waste piped to their homes for gas central heating and cooking. Up to 200 families in Didcot now receive the...
【单选题】第二次工业革命深刻改变了世界面貌。下列现象不属于此次工业革命影响的是( )
A.
改变了人们的生活方式
B.
垄断组织开始出现
C.
“电气时代”到来
D.
工厂替代了手工工场
【判断题】有鞭毛 的细菌可发生 变异,由 有鞭毛变异为 没有 鞭毛, 但是细菌 的 运动性依然 存在。
A.
正确
B.
错误
【简答题】气质有哪些类型?
【简答题】A town in Oxfordshire has become the first in the UK to have biomethane(生物甲烷)gas from human waste piped to their homes for gas central heating and cooking. Up to 200 families in Didcot now receive the...
【简答题】Gas has become so cheap that it can be _____________ coal as an electricity-generating fuel.
【单选题】用英语的首字母表示黄色导线的符号是( )。
A.
“B”
B.
“L”
C.
“W”
D.
“Y”
【单选题】So often ______ in recent years that it has almost become a rule.A.has this happenedB.this has ha
A.
32.So often ______ in recent years that it has almost become a rule. A.has this happened
B.
this has happened
C.
is this happening
D.
for this to happen
【简答题】储罐按几何形状可分为( )、( )和 球形储罐三类。
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