pKa小于8.5有利于吸收的是
A.液状石蜡B.椰油酯C.肥皂∶甘油∶95%乙醇(1∶1∶5)D.聚氧乙烯(40)单硬脂酸酯类E.可可豆脂
参考答案:B
It's important ________fish too much food. [ ]
A. to give
B. giving
C. not to give
D. not give
令牌总线媒体访问差别控制是将物理总线上的站点构成一个()。