单选题
The science of medicine, ______ progress has been very rapid in recent years, is perhaps the most important of all the sciences.
A、
to which
B、
in which
C、
which
D、
with which
【正确答案】
C
【答案解析】
[解析] 本题考查的是which引导的非限定性定语从句用法，先行词为“The science of medicine”并在从句中作“process”的定语，因此，答案是C。
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