在相对湿度为56%时,水不溶性药物A与B的吸湿量分别为2g和3g,A、B混合后不发生反应,则混合物的吸湿量为()
A. 2.8g
B. 8g
C. 1.5g
D. 6g
E. 5g
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The novel______addresses many of the social and intellectual issues facing African-Americans in the early twentieth century, especially the black identity.
A. Invisible Man
B. I Wonder as I Wander
C. Native Son
D. Not Without Laughter
当药物本身产生的饱和蒸汽压低于环境的水蒸气分压时,将产生()
A. 吸湿
B. 风化
C. 蒸发
D. 吸附
E. 降解
下列方法中不能用于评价混悬剂质量的是()
A. 再分散试验
B. 微粒大小的测定
C. 沉降体积比的测定
D. 浊度的测定
E. 絮凝度的测定
Which of the following is a voiced alveolar fricative?
A. [s]
B. [z]
C. [f]
D. [v]