A.25.4% | B.20.3% | C.15.8% | D.5.9% |
15g |
80g+15g |
A.15% | B.大于15% | C.小于15% | D.无法确定 |
A.42g | B.31.5g | C.21g | D.10.5g |
A.m=160n/250 | B.m=1600n/(2500+9n) |
C.m=1600n/(2500+16n) | D.m=1600n/(2500+25n) |
A.50ml、50g | B.45.5ml、50g |
C.55ml、40.5g | D.45.5ml、54.5g |
A.4% | B.4.2% | C.4.4% | D.5% |
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