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搜题
【单选题】
— Mary, new copies of Harry Potter are on sale now. — Great! Let's go and buy _____ this afternoon. [ ]A.
it
B.
that
C.
any
D.
one
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The strategy in a mature industry to invest in infrastructure that would be cost-prohibitive for new entrants to deter new competition from entering the market is known as:
A.
product proliferation.
B.
technology upgrading.
C.
market penetration.
D.
capacity control.
E.
product development.
【简答题】蛋白质的生理功能包括（ ）。
【单选题】The number and quantity of new entrants in an industry depends on which one of the following?
A.
Switching costs of suppliers
B.
The profit potential of the industry
C.
Barriers to entry
D.
The threat of substitute products
【单选题】在某一类型的血细胞中，一种电中性物质的浓度比周围血浆中的该物质的浓度高得多，然而此物质仍能继续不断地进入细胞。该物质进入细胞的这一过程是：（）
A.
渗透作用
B.
简单扩散作用
C.
易化扩散即进行得较快的扩散作用
D.
主动传送（或称活性转运）
【单选题】在某一类型的血细胞中,一种中性物质的浓度比周围血浆中的浓度高得多,然而此物质仍能继续不断地进入细胞。该物质进入细胞的这一方式是
A.
渗透作用
B.
简单扩散
C.
易化扩散
D.
主动运输
【单选题】During a period when new entrants are being attracted to an industry, we would expect that:
A.
economic profits are positive.
B.
as a result, economic profits are falling.
C.
as a result, economic profits are rising.
D.
both (a) and (b) are true.
【简答题】蛋白质的生理功能是什么?
【判断题】In the Five Forces Model, the threat of new entrants is high when it is easy for new competitors to enter a market.
A.
正确
B.
错误
【简答题】解释名义利率和有效利率,并说出它们的区别。
相关题目：
【单选题】在某一类型的血细胞中,一种中性物质的浓度比周围血浆中的浓度高得多,然而此物质仍能继续不断地进入细胞。该物质进入细胞的这一方式是
A.
渗透作用
B.
简单扩散
C.
易化扩散
D.
主动运输