D.可参考方法中有关检视的内容
E.检视的方法参考此标准
30.以下备选答案中,描述药物的气味是
A.Characteristic: aromatic
B.Characteristic:yellowish to reddish
C.Characteristic:a clear yellow liquid
D.Characteristic:reddish brown
E.Characteristic:colourless crystals
31.Reduce 50g to No. 180 powder and determine the loss on drying by drying
2g to constant weight at 100℃ to 105℃。在上述药品的干燥失重实验中,将多少克的待测样品干燥至恒重
A.50g B.180g C.2g D.100g E.105g
32.Place the plate in a chamber containing ammonia vapour.此句的意思是将层析板
A.置于密室中 B.喷氨水溶液
C.置于氨水溶液中 D.置于含氨蒸气的密闭容器中
E.以上都不对
33.Cinnamon oil should be kept in a well-filled, well-closed container,protected from light and stored at a tmperature not exceeding 25℃。关于该品的贮藏,下列正确的是
A.容器大小要适中 B.容器应为棕色
C.应绝对密封保存 D.贮藏温度应在25左右
E.应盖紧避光贮藏
34.Use 20g and distil at a rate Of 2.5ml to 3.5ml per minute for 5 hours.实验中蒸馏提取的速率是
A.每5小时2.5~3.5ml B.每小时2.5~3.5ml
C.每5小时12.5~17.5ml D.每小时150~210ml
E.以上均不对
35.Mix the drug o.1g, in No.180 powder, with 30ml water and weigh, heat under a reflux condenser in a water bath fr 15 minutes.关于该项实验,不正确的是