若平面向量a=(1,-2)与b的夹角是180°,且|b|=35,则b等于 ___

题型:填空题

问题:

若平面向量
a
=(1,-2)与
b
的夹角是180°,且|
b
|=3
5
,则
b
等于 ______.
考点:向量数量积的运算
题型:填空题

Passage Two

Every market activity is an investment in time, energy and money. Few companies would spend a large sum of money on, say, a purchase of capital equipment without a full investigation into why it is needed, the choices available, and the expected return on what has been spent. Yet every year the vast majority of companies invest a large amount of money in marketing actions without knowing what their financial worth to the company or likely return will be. By introducing the disciplines arising from market planning, a company should be able to ensure that the costs of marketing planning show a reasonable return and are calculated in the same way as all other business investments.

Many managers believe that the costs of marketing form an additional expense that has to be accepted in order to sell their goods. Whilst it is true that many companies use certain tools of marketing for this purpose, it is also true that the most successful companies accept marketing as an essential part of the company’s total commercial operation, for it is an essential cost in the same way as production or finance.

Companies often avoid planning marketing procedures in detail because of the effort needed to express their forward policy in a written form. Managers commonly consider that their time is too valuable to spend on anything other than urgent operational problems. In fact, the manager who spends his time on dealing with current administrative detail is almost certain to have ignored proper planning in the past. For, if properly prepared, the marketing plan will contain sufficient details of the company’s policy and operational strategy for the work to be done by an assistant. As the many alternative courses of action are programmed, the assistant takes any actions or decisions which are appropriate. Only unusual situations need be dealt with by the manager.

The first step in preparing a marketing plan is that of producing the information necessary for decision making. Usually, a company will have within its own administration and control system the raw material necessary for the plan’s foundations. In addition, there is plenty of published information which is made available by government departments, institutions and the press.

Marketing research is yet to be fully exploited by the majority of companies. It has so far only been used by companies that have recognized that their existing information sources are inadequate. Because of the scale of operations that now confronts the typical businessman, it is essential that investment decisions are based upon relevant information, so reducing the business risk.

For a marketing-oriented activity to produce lasting results the entire operation has to be systematically planned. By producing basic information in written form and establishing aims for the future, the company is creating standards against which actual performance can be measureD. Documentation of detailed policy actions then provides the basis for controlling the company’s operation. Future trends may be predicted through the investigation of all factors likely to influence company results.

Good marketing procedures allow a manager ().

A.to take different courses of action

B.to do less work than others

C.to avoid unforeseen problems

D.to give more responsibility to others

题型:填空题

阅读下文,完成后面习题。(本大题共5小题,共23分)

流 变

林耀德

①一块废弃的铜片,在漂流人间数千年之后,又被投掷在高温的熔炉里重新提炼,洗浴身上所有的杂质。他重新融入精纯的铜浆之中,和所有的同伴化为新的整体。

②他曾经在铜山中和其他元素结缡为幻美的结晶,曾经被融铸为远古时代的巨鼎,曾经是皇帝花苑中伫立台阁上的铜鸟,曾经被压缩为打印上年号与币值的制钱,曾经被僧人牢牢钉死在山门上成为衔住门环的狮头环扣,他又化身为扰人的滴漏、夜夜震动易碎的诗人心房。那些记忆渗透在他的梦中,而沸腾的锅炉正将一切的意识都煮成氤氩的蒸汽

③当他清醒过来,已经成为一具魁梧塑像的颜面,迎着晨曦,他感受到清凉的南风。眼前是一座城市,一层层的楼房乱中有序地铺展成巨大的扇形视野。到了正午,他被骄纵的阳光晒得烫热,焕发出强烈耀目的金属色泽,车辆们都得绕着他台座周围的圆环缓缓通行。

④塑像傲视的立姿成为布景的一部分,他不再是一群铜分子的凝聚体了。即使过去的历史已经模糊得无法辨识,他却毫不在意。

⑤他开始相信自己是塑像人物的化身,他甚至顿悟什么是寂寞。对于铜本身而言,寂寞是一种根本不存在的情绪,他也曾经蛰伏在看不见光的矿脉深处,地球自转了几十亿年也不曾让他如今一般触发寂寞的念头。接着,他慢慢相信自己拥有心灵,意识到自己正在无声地意识着这个世界。从行人的眼光中,他看出了塑像人物和人民之间那种既熟悉又疏离的情感,他从人类眼光的变化体悟出崇高和敬畏之间的不同。崇高是一种无法用言词超越、更谈不上有任何可能被具体描述的心灵震撼;而敬畏,仅仅是一种避凶趋吉的礼仪。

⑥他也开始意识到这座铜像似乎也寄藏了人类的梦,而且是许许多多哭嚎失声的梦。他遁入塑像尊者的生命史里,体会这种身着戎装站在市区中央的困惑。

⑦塑像人物生前最骄傲的手势完全呈现在台座上方,塑像的脸庞上也镂刻出一连串战争遗留下的凿痕。

⑧塑像人物本身的残梦也入侵了清醒的铜材。

⑨颜面上的铜,也开始目睹那个人过去的荣光,每当他举起右拳向忠诚的子民们宣告祖国人民的使命时,无数人群如痴如狂地被那种神妙的手势导引……

⑩颜面上的铜,早已失去了光泽。他最后学到的情感是自怜。灵巧的鸽子在塑像的肩绶和军帽上漫无节制地排泄。随着铜像的陈旧,路人不再有崇高的震撼,不再有敬畏的眼神,他们以鄙夷取代了礼赞;最后路人连鄙夷的心情都没有,他们回报塑像的是无表情的冷漠。

(11)在这座城市有史以来首度被侵略者攻陷的时候,铜像的眼睛流出了金属结晶构成的泪;他仍然屹立着,直到这座城光复之后,才被自己的同胞推倒,送进陈旧老迈的炼铜厂。从每一个城市送来的,一式一样的铜像如同巨大的弃尸,无礼地横陈肢体,彼此压挤,等待着分解,以及毁灭。

(12)颜面上的铜块再度被解散了,但是马上又被模铸成型,这次他被分割成几百发尖锐闪亮的子弹。当他们以高速呼啸著破空地穿入人体,一切多余的梦境都在血光中归于寂灭。

小题1:怎样理解“沸腾的锅炉正将一切的意识都煮成氤氲的蒸汽”在文中的含意?(2分)

小题2:请简要概括人们对塑像的态度变化。(4分)

小题3:文章第⑥段提到“他遁入……体会这种身着戎装、站在市区中央的困惑”,他为什么“困

惑”?(4分)

小题4:请简要概括标题“流变”的作用。(6分)

小题5:本文结尾提到铜像的毁灭,并写到“当他们以高速呼啸着破空地穿入人体,一切多余的梦境都在血光中归于寂灭”,请结合全文,分析作者的观点。结合现实,谈谈你对作者观点的看法。(7分)

题型:填空题

诊断抑郁发作的必要条件是()

A.动作减少

B.思维迟缓

C.早醒

D.自杀观念

E.心境低落

题型:填空题

人力资源管理把人看作为( )

A.主体

B.要素

C.成本

D.资源

题型:填空题

金融市场功能不包括( )。

A.融通货币资金

B.优化资源配置

C.风险分散

D.保险功能

更多题库