后天就要考试了，请教大家几个问题~~

1. 不对啊，第一个环节，efficiency和cost。efficiency只是在单位时间能生产更多的产品，或者生产单位产品需要的material更少。cost是综合的成本，包括overhead，direct material，direct labor等等。第二个环节，降低cost和profit的上升就更没有必然联系了，profit需要考量cost和sales（revenue），如果卖的比原来更少了，还是无法提高profit啊。

2. Quotation这个问题我也没有研究过，我帮你找的资料)
Sometimes, you describe the quotation in your own words before using it. In this case, you should use a colon ( to indicate the beginning of the quotation. Then begin the quotation with a quotation mark ("). After you have completed the quotation, close it with a quotation mark ("). Here is an example:
Sir Winston Churchill made a witty remark on the attitude of a pessimist: "A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."

Sometimes the sentence in which the quotation is embedded does not describe the quotation, but merely introduces it. In this case, do away with the colon. Simply use the quotation marks. Here is an example:
Sir Winston Churchill once said "A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."

As far as possible, you should mention the author and the source of the quotation. For instance:
In Shakespeare’s play As You Like It, Touchstone says to Audrey in the Forest of Arden "The fool doth think he is wise, but the wise man knows himself to be a fool." (Act V, Scene I).

3. 专业术语：
疏于管制：我不知道你是指管理上的疏忽Neglect of management，还是指宽松的管理Lax control
寻租：rent-seeking   这个寻租空间我还真不知道怎么说。。。也没有查到。你可以换种说法，比如positive aspect of rent-seeking

还有一个问题...请问 profit revenue cost 这些可数吗...？ 要不要加s 还是加不加都行......

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revenue和cost 是可数名词，最好用复数形式；profit 作为可数和不可数名词都行，不一定加s.

个人觉得最好跟题目里的用法一致吧~~