若中断时间较长或跨越水位的急剧变化区间,可采用()插补计算。
A.直线
B.平均水位法
C.水平线
D.相关曲线法
参考答案:D
I don’t think that your lecture _______ the audience, for they appeared quite puzzled.
A.got across to
B.got close to
C.got away with
D.got along with
在0.05mol/L的HCN中,若有0.01%的HCN电离了,则HCN的解离常数Ka为()。
A.5×10-8
B.5×10-10
C.5×10-6
D.2.5×10-7