A.0.25 B.0.3 C.0.025 D.2.5
A.3.0~4.0 B.3.9~4.2 C.3.8~4.5 D.3.8~4.5
A.升高 B.降低 C.不变 D.先升后降
A.10% B.20% C.30% D.40%
A.0.01 B.1.5 C.0.8 D.1.0
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