The mergers and acquisitions market,in turn,will help cataly

为啥?
Mergers may be effected to revive or rejuvenate failing businesses by the infusion of new management and personnel.
A.inspection
B.introduction
C.evaluation
D.concentration
infusion下边有条线，对不起了

mergers and acquisitions什么意思
我知道merger是并购的意思,但后面那个acquisitions什么意思

英语翻译
The world is going through the biggest wave of mergers and acquisitions ever witnessed.

英语翻译
The world is going through the biggest wave of mergers and acquisitions ever witnessed.
前面都清楚,主要是作后置定语的witnessed之前的ever不知道怎么翻译,按字典上说,ever用于疑问句和if从句时译为“曾经”,用于否定句时,配合否定句中的否定成分才能译为“从不”,而这句话不是否定句,如果直译的话,ever witnessed应译为“曾经目击的”,但标准答案却译为“史无前例（从未目击）的”,这怎么回事儿?
不需要整句话的翻译，只需要把ever witnessed为什么这么翻译解决就可以。

英语翻译
While airline mergers can reduce fares by creating economies of scale,skeptics say the latest merger is far more likely to retrench options for consumers.

英语翻译
Critical Success Factors through the Mergers and Acquisitions Process:Revealing Pre- and Post-M&A Connections for Improved Performance
并购过程中成功的关键性因素：揭示并购前后的联系以.后面的部分怎样翻译合适?

英语翻译
如标题 Lindquist & Vennum’s corporate finance and mergers & acquisitions group 怎么翻译

According to those who support mergers railway momopoly is unlikely because.
这里unlikely是修饰because 还是 修饰support mergers railway momopoly 为什么?

英语翻译
The world is going through the biggest wave of mergers and acquisitions ever witnessed.The process sweeps from hyperactive America to Europe and reaches the emerging countries with unsurpassed might.Many in these countries are looking at this process and worrying:“Won’t the wave of business concentration turn into an uncontrollable anti-competitive force?”
在段落的第一句The world is going through the biggest wave of mergers and acquisitions ever witnessed.中最后的ever witnessed应作何翻译?为什么这样翻译,越详细越好,只回答这一个就行,不需要翻译整段话.