Gaokao Math Practice Question
12. 已知 $a=\frac{31}{32}, b=\cos \frac{1}{4}, c=4 \sin \frac{1}{4}$, 则 ()
- A.$c>b>a$
- B.$b>a>c$
- C.$a>b>c$
- D.$a>c>b$
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