答案查看网,轻松搜题/搜资源
登录
×
登录账号
记住密码
立即注册
忘记密码
×
注册
使用微信扫描二维码,获取账号密码后免费查看答案
前往登录
忘记密码
×
忘记密码
使用微信扫描下方二维码,即可找回您的账号密码
前往登录
立即注册
搜题/搜资源
【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
①
分层
②
絮凝
③
转相
④
破裂
⑤
酸败
参考答案:
复制
纠错
➡️如需代学继续教育,请点击这里
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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【判断题】
11. 乳剂组成包括:水相、油相和乳化剂。
①
正确
②
错误
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
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
查看完整题目与答案
【单选题】
Although only of __________ intelligence, he speaks four languages fluently.
①
average
②
middle
③
mean
④
normal
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案