【单选题】【消耗次数:1】
13. 乳剂放置后出现分散相粒子上浮或下沉的现象,这种现象是乳剂的
分层
絮凝
转相
破裂
酸败
参考答案:
复制
纠错
相关题目
【单选题】 乳剂放置后,有时会出现分散相粒子上浮或下沉的现象,这种现象称为
①  分层(乳析)
②  絮凝
③  破裂
④  转相
【单选题】 乳剂分散相和连续相密度不同而造成的分散相粒子上浮或下沉的现象称为()。
①  破坏
②  乳析
③  合并
④  转相
⑤  絮凝
【判断题】 13. 乳剂在放置过程中,容易因分散相和分散介质的密度不同而分层。
①  正确
②  错误
【判断题】 14. 乳剂中分散相的乳滴发生可逆聚集的现象称为絮凝。
①  正确
②  错误
【单选题】 乳剂中分散的乳滴聚集形成疏松的聚集体,经振摇即能恢复成均匀乳剂的现象称为乳剂的( )。
①  分层
②  絮凝
③  转相
④  合并
【单选题】 乳剂的组成,除由水相、油相外,还有( )。
①  抗菌剂
②  乳化剂
③  助悬剂
④  润湿剂
⑤  絮凝剂
【单选题】 不属于乳剂的不稳定现象的是( )。
①  氧化
②  絮凝
③  转相
④  分层
⑤  破裂
【判断题】 11. 乳剂组成包括:水相、油相和乳化剂。
①  正确
②  错误
【单选题】 计算机染上病毒后,不可能出现的现象是__________。
①  系统出现异常启动或经常“死机”
②  程序或数据无故丢失
③  磁盘空间变小
④  电源风扇的声音突然变大
【判断题】 16. 混悬型液体药剂是指大小在1-1000nm范围的分散相质点分散于分散介质中。
①  正确
②  错误
随机题目
【单选题】 After five hours’ drive, they reached ___________they thought was the place they’d been dreaming of.
①  that
②  where
③  which
④  what
【单选题】 Although only of __________ intelligence, he speaks four languages fluently.
①  average
②  middle
③  mean
④  normal
【单选题】 Computer classes must be __________ to every student of all grades, which will make them have a good command of the modern communication and learning tool.
①  accessible
②  avoidable
③  valuable
④  acceptable
【单选题】 Peter’s mother kept telling him that he should give up smoking, but _____ didn’t help.
①  he
②  which
③  she
④  it
【单选题】 Not until he went through real hardship the love we have for our families is important.
①  had he realized
②  did he realize
③  he realized
④  he had realized
【单选题】 —I knocked over my coffee cup. It went right over _____ keyboard.—You shouldn’t put drinks near _____ computer.
①  the; /
②  the; a
③  a; /
④  a; a
【单选题】 The letters for the boss __________ on his desk but he didnt read them until three days later.
①  were put
②  was put
③  put
④  has put
【单选题】 Someone called me up in the middle of the night, but they hung up _____ I could answer the phone.
①  as
②  since
③  until
④  before
【单选题】 Is the hotel _____ offered you a job _____ you stayed the first time you arrived here?
①  which; where
②  the one; in which
③  where; that
④  the one that; which
【单选题】 —Have you heard about that fire in the market?—Yes, fortunately no one __________.
①  hurt
②  was hurt
③  has hurt
④  had been hurt