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
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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]
欲配制一种口服乳剂,宜选用的乳化剂是()
A. 司盘20
B. 十二烷基硫酸钠
C. 三乙醇胺
D. 阿拉伯胶+西黄蓍胶
E. 十六烷基硫酸钠