农业用优级品尿素,缩二脲指标为() A、1.0%B、0.9%C、0.5%D、1.5%
农业用优级品尿素,缩二脲指标为()
- A、1.0%
- B、0.9%
- C、0.5%
- D、1.5%
相关考题:
尿素缩合反应生成缩二脲,若尿素成品中缩二脲含量为0.85%(wt),水含量0.35%(wt),则生产1吨尿素成品中因缩二脲生成而损失的尿素为()kg。A、9.90B、9.87C、4.95D、8.5
单选题航迹舵对指标航向修正量小数点位的处理方法为:()A0.1~0.5取0,0.6~0.9取1.0B0.1~0.5取0.5,0.6~0.9取1.0C0.1~0.5取0,0.6~0.9取0.5D0.1~0.5取0.5,0.6~0.9取0.5
单选题航迹舵指标航向修正量Δ小数点位处理方法为()。A0.1~0.5取0,0.6~0.9取1.0B0.1~0.5取0.5,0.6~0.9取1.0C0.1~0.5取0,0.6~0.9取0.5D0.1~0.5取0.5,0.6~0.9取0.5