单项选择题

Glass-fiber cables can carry hundreds of telephone conversations ______. A. spontaneously B: simultaneously C. immediately D. immiscibly
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单项选择题
The speaker in Brief Encounter did not believe the heroine could be an artist because she was not______.
A．well trained in n musical academy
B．too sensitive and pure
C．talented as she herself had described
D．temperamental enough to be an artist
单项选择题
The passage is written for the purpose of______.
A．explaining the difference between natural and man-made radiation
B．amusing concern about the risks with the use of producers of low-level radiation, like medical X rays
C．advocating limiting the use of atomic weapon testing
D．publicizing the results of a recent British medical survey
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