1921年7月，中 * * 党第一次全国代表大会在上海召开期间，由于受到暗探侦察和巡捕骚

如图是中国象棋棋盘。传说象棋是舜的弟弟象发明的，所以叫“象棋”。如果这种说法成立，那么中国象棋最早应出现于

A．原始社会

B．西周

C．夏朝

D．商朝

患者，女性，18岁。突然剧烈头痛、伴呕吐，查体：颈项强直，克氏征阳性，布氏征阳性，体温37.0℃，既往身体健康。CT示双侧裂池及纵裂池内等密度影。

患者每日尿量必须保证超过（）

A.400ml

B.600ml

C.800ml

D.1000ml

E.1500ml

Growth of real GDP in the Czech Republic is at a historically low level. An economic summit in Prague invited the leading economists to pose a solution to the declining economic situation. Many of the economists in attendance subscribe to supply side economic theory. Their solution is to reduce the incredibly high marginal tax rate of 68% to 35%. The primary benefit of such a policy is:（）

A. higher levels of disposable income and ability to consume goods and services leading to higher GDP.

B. greater incentive for individuals to spend-their income on tax-deductible luxury items.

C. increased incentive for domestic investment leading to increased aggregate supply and GDP.

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

使用携带型仪器的测量工作时，测量用装置必要时应设遮栏或围栏，并悬挂“在此工作”的标示牌。