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经过涂蜡绘图染色脱蜡漂洗这些步骤后,一块完整的蜡染布就完成了.蜡染中最奇妙的是当蜡冷却后,在织物上产生的龟裂色料渗入裂缝产生变化多样的色纹A piece of la ran is _____ after spreading was, painting, dyeing and washing the cloth. The most interesting part is that _______ along the cracks of the cloth after cooling

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同样的图案蜡染后却可得到不同的色纹.花鸟鱼虫几何图案映衬深蓝的底色蜡染显得古朴而神秘Different grains come from the same patterns. Flowers, birds, fish, insects and ____ on the cloth look ____

Which one of the following is not the physical and chemical factors affecting the design of oral sustained and controlled release preparations.

A. stability
B. Water solubility
C. Partition coefficient
D. half-life
E. PKa

The half-life of the drug that is suitable for the preparation of sustained/controlled-release preparations is

A. <1 h
B. 2-8 h
C. 24-32 h
D. >48 h

The dosage of drug for a general preparation is 3 times a day, 100mg each time. Now you are plan to design a sustained-relese preparation, and take medicine once a day. What dosage should you choose?

A. 150mg
B. 200mg
C. 250mg
D. 300mg
E. 350mg

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