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【多选题】
下列关于表面活性剂的增溶作用,表述正确的有( )。
A.
增溶后的体系是一个各向异性,但透明、均匀的溶液
B.
表面活性剂的浓度越大,形成的胶束越多,增溶作用就越强
C.
正己烷会被增溶于胶束内核
D.
月桂酸会被吸附增溶于胶束/水界面
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A.
镜子
B.
水晶
C.
粗陶
D.
玻璃瓶
【单选题】While a current is flowing through a wire, the latter is being heated.
A.
电流流过导线时, 导线就会同时被加热。
B.
电流流过导线时, 导线就发热。
【单选题】光泽度低,形体转折清晰明确的物体是
A.
镜子
B.
水晶
C.
粗陶
D.
青苹果
【单选题】. While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
A.
occasionally
B.
simultaneously
C.
eventually
D.
directly
【多选题】管道运输是一种特殊运输方式,具有以下哪些优点。
A.
运量大
B.
不受天气影响
C.
可连续作业
D.
成本低
【单选题】While reading, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
A.
occasionally
B.
eventually
C.
automatically
D.
absolutely
【简答题】There’re a lot of _____(彩色)flags when the new term begins.
【简答题】While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth. A.now and then B.over and over C.up and down D.here and there
【简答题】While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth. A  now and then     B.over and over     C.up and down    D.here and there
【简答题】I live in a big city with a lot of homeless(无家可归的) people. Luckily there’re small ways of helping them and you needn’t have a lot of 31 . One way to help is to buy their monthly magazine. By doing thi...
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