A．untilB．sinceC．beforeD．after

单项选择题

Hurtling as we are towards the new millennium, with all the social changes this iconic date implies, it is increasingly apparent (21) the world of business is experiencing fundamental shifts. Today, both companies and schools are increasingly aware that business is a human activity; it’s ultimately (22) and about people.
In future, employers will (23) doubt demand more rounded individuals to run their operations, which naturally creates a question for the next generation of students, "Is the classic MBA still the model—and obligatory—passage toward that ideal career"
The Masters of Business Administration (MBA), the best-known business school label, is an introduction to general management. The traditional MBA, Harvard-style, has remained largely unaltered (24) the 1950s, and seeks to provide a thorough knowledge of business functions through the case study—a(n) (25) incidentally borrowed from law school.
The trouble is that the real world is not a theoretical exercise. The problems managers face today are messy, and, if anything, are becoming messier, neither fitting in neat functional boxes nor (26) one simple answer. Ambiguity is the hardest (27) to manage, but it’s the one most managers are wrestling with.
"Management is more art than science," observes Richard D’Aveni, professor of strategic management at Dartmouth’s Amos Tuck School of Business Administration. "No one can say with certainty which decisions will bring the most (28) , any more than they can create instructions over (29) to sculpt a masterpiece. You just have to feel it as it goes."
John Quelch is another business-school insider who detects the limitations of the traditional syllabus. According to Quelch, leadership is an area that b-schools have not fully addressed. It is notoriously hard to teach, (30) programs do have the capacity to provide a grounding in non-business areas and personal growth.

A．until
B．since
C．before
D．after