测定临界胶束浓度-增溶作用法
参考答案:
当表面活性剂溶液的浓度超过一定值时,烃类或不溶性染料在该溶液中的溶解度急剧增加,这一浓度即为临界胶束浓度。
Research on animal intelligence always makes me wonder just how smart humans are. (91) the fruitfly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly (92) to live shorter lives. This suggests that (93) bulbs burn longer, that there is an (94) in not being too terrifically bright.Intelligence, it (95) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (96) the starting line because it depends on learning—a gradual (97) —instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (98) .Is there an adaptive value to (99) intelligence That’s the question behind this new research. I like it. Instead of casting a wistful glance (100) at all the species we’ve left in the dust I.Q. wise, it implicitly asks what the real (101) of our own intelligence might be. This is (102) the mind of every animal I’ve ever met.Research on animal intelligence also makes me wonder what experiments animals would (103) on humans if they had the chance. Every cat with an owner, (104) , is running a small-scale study in operant conditioning, we believe that (105) animals ran the labs, they would test us to (106) the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really (107) , not merely how much of it there is. (108) , they would hope to study a (109) question. Are humans actually aware of the world they live in (110) the results are inconclusive.
A.invisible
B.limited
C.indefinite
D.different
治安行政强制权,是指公安机关在依法进行治安行政管理和实施治安行政处罚时,为达到使行为人履行法定义务或接受处罚的目的,对不履行法定义务或不服从治安行政处罚的人所采取的人身和物品的强制手段。下列属于公安机关的治安行政强制权的有()。
A.行政拘留
B.强行带离现场和强制拘留
C.强制隔离
D.约束特定的人、盘问检查