题目内容：
请根据短文内容，回答题。Unpopular Subjects?
Is there a place in today's society for the study of useless subjects in our universities? Just over 100 years ago Fitzgerald argued in a well-written letter __________ (1) Nature that "Universities must be allowed to study useless subjects.__________(2) they don't, who will?" He went on to use the __________(3) of Maxwell's electrodynamics (电动力学) as one case where a "useless subject" has been transformed to a useful subject.
Nowadays this argument is again very much__________ (4) in many universities. Indeed one suspects that it is one of those arguments that must be__________ (5) anew ( 重新 ) by each generation. But now there is an added twist--subjects must not only be useful, they must also be__________(6) enough that students will flock (峰拥) to do them, and even flock to pay to do them.
As universities become commercial operations, the pressure to__________ (7) subjects or departments that are less popular will become stronger and stronger. Perhaps this is most strongly__________(8) at the moment by physics. There has been much__________(9) in the press of universities about closing down physics departments and incorporate them with mathematics or engineering departments.
Many scientists think otherwise. They see physics as a__________ (10) science, which must be kept alive if only to__________ (11) a base for other sciences and engineering. It is of their great personal concern that physics teaching and research is under__________(12) in many universities. How can it be preserved in the rush towards commercial competition? A major turnaround (转变) in student popularity may have to__________ (13) until the industrial world discovers that it needs physicists and starts paying them well.
Physics is now not only unpopular; it is also "hard". We can do more about the latter by__________(14) teaching in our schools and universities. We can also__________ (15) cooperative arrangements to ensure that physicists keep their research and teaching up to date.
_________ A．about
B．of
C．to
D．on
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