(µ¥Ñ¡Ìâ)8: ÒÔÏÂTTL²ÎÊýÊýÖµ´óС±íʾÕýÈ·µÄÊÇ()
A: UIHmin≥Uth≥UILmax
B: UIHmin≤Uth≤UILmax
C: UIHmin≤Uth≤UILmax
D: UIHmin≤UILmax≤Uth
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