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单项选择题
A.10.17%
B.10.31%
C.10.24%
D.10.23%
单项选择题
A.850±10℃
B.850±15℃
C.900±10℃
D.900±15℃
单项选择题
A.大于12%
B.小于12%
C.2%~12%
D.大于2%
单项选择题
A.0.20,0.30
B.0.30,0.50
C.0.50,0.70
D.0.20,0.50
单项选择题
A.0.20,0.30
B.0.30,0.50
C.0.50,0.70
D.0.20,0.50