昙点(cloud point)
参考答案:
当温度上升到一定程度时,非离子表面活性剂溶解度急剧下降并析出,溶液出现混浊,此时的温度称为浊点或昙点(cloud point)。
Ten years ago the population of our village was _________ that of theirs.
A.as twice large as
B.twice as large as
C.twice as much as
D.as twice much as
You shouldn't be too _____about things that you needn't know. [ ]
A. strange
B. surprised
C. exciting
D. curious