A．the two speakers are the student and the professor.
B．the development of large cities in the developing countries is not balanced.
C．the large cities in the developing countries grew as rapidly as those in the developed countries.
D．it's easy to solve the problems of the large cities.
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A．Interviewing an assistant.
B．Applying for the post of assistant.
C．Recruiting an assistant.
D．Training to be an assistant.
A．not enough applicants.
B．rarely bringing fresh ideas to the company.
C．lots of internal political problems.
D．requiring more time to find qualified applicants.
A．They will only advertise internally.
B．They will only advertise externally.
C．They will advertise externally first, then internally.
D．They will advertise internally first, then externally.