伤寒应实行的隔离方式是（） A.严密隔离 B.消化道隔离 C.体液隔离

It is natural for young people to be critical of their parents at times and to blame them for most of the misunderstandings between them. They have always complained, more or less justly, that their parents are out of touch with modem ways; that they are possessive and dominant; that they do not trust their children to deal with crises; that they talk too much about certain problem—and that they lack sense of humor, at least in parent-child relationships.
I think it is true that parents often underestimate their teenage children and also forget how they themselves felt when young.
Young people often irritate their parents with their choices in clothes and hairstyles, in entertainers and music. This is not their motive. They feel cut off from the adult world into which they have not yet been accepted. So they create a culture and society of their own. Then, if it turns out that their music or entertainers or vocabulary or clothes or hairstyles irritate their parents, this gives them additional enjoyment. They feel they are superior, at least in a small way, and that they are leaders in style and taste.
Sometimes you are resistant and proud because you do not want your parents to approve of what you do. If they approve, it looks as if you are betraying your own age group. But in that case, you are assuming that you are the underdog; you cannot win but at least you keep your honor. This is a passive way of looking at things. It is natural enough after long years of childhood, when you were completely under your parents’ control. But it ignores the fact that you are now beginning to be responsible for yourself.
If you plan to control your life, cooperation can be part of that plan. You can charm others, especially your parents, into doing things the way you want. You can impress others with your sense of responsibility and initiative, so that they will give you the authority to do what you want to do.

Teenagers do not want their parents to approve of whatever they do because they ______.

A. have already been accepted into the adult world
B. feel that they are superior in a small way to the adults
C. are not likely to win over the adults
D. have a desire to be independent

工程总承包项目管理的主要内容应包括( )。

A．任命项目经理，组建项目部

B．进行项目策划并编制项目计划

C．实施设计管理、采购管理、施工管理、试运行管理

D．进行项目范围管理

E．确定工期目标

变压器并列运行时的条件是（）。

A、变比相等

B、短路电压相同

C、复功率相等

D、接线组别相同

流动性偏好是指人们宁愿持有流动性高但不能生利的货币，也不愿持有其他虽能生利但较难变现的资产的心理动机。一般是为了便于应付日常支出；或应付意外的支出；或是为了投机取利。下列现象适于用流动性偏好来加以解释的是（）

①孩子一出生，家长就为孩子未来上大学办理教育储蓄

②金融危机背景下，股市动荡，股民纷纷退出股市

③尽管银行连续降息，但人们仍将大量存款放在银行

④经济不景气，张某为防下岗，不乱花钱

A.①③

B.③④

C.②④

D.②③

地闪中电场的B变化是指（）

A.级先导时的电场变化；

B.梯式先导之前的电场变化；

C.地闪回击电场变化；

D.地闪间歇阶段的电场变化。