在温度相同，压强分别为P1和P2的条件下，A（g）+2B（g） nC（g）的反

发布时间：2017-04-17 13:58 │ 来源：www.tikuol.com

题型：选择题

问题：

在温度相同，压强分别为P₁和P₂的条件下，A（g）+2B（g）

n C（g）的反应体系中，C的百分含量（c%）与时间t的曲线如图所示，下面结论正确的是（　　）

A．P₁＞P₂，n＜3

B．P₁＜P₂，n＞3

C．P₁＞P₂，n＞3

D．P₁＜P₂，n＜3

考点：化学反应的限度

题型：选择题

Questions 23-28
· Read the Chairman’s Statement below.
· For questions (23-28), choose the correct answer.
· Mark one letter (A, B or C) on your Answer Sheet.

Chairman’s Statement
Despite the appearance of a new competitor on the market, the company continued to grow and increase its market share throughout 2000. Partly in response to this new threat, but more importantly, as part of a strategy for growth, several key decisions were taken this year. The most significant new developments included a range of vitamin-rich drinks for children and low calorie diet drinks, which both proved very popular.
The company is still best known for its range of refreshing fruit drinks and, not surprisingly, these were our biggest sellers once more. There were two new additions to the range last year, Squish! and Liquid Sunshine, both of which have a distinctive Caribbean flavour. The first sales figures suggest that our expensive TV advertising campaign was very successful and that these products will soon be as popular as the rest of the fruit drink range.
Growth in the keep-fit and health markets meant our energy drinks did well in 2000. Sales of one brand, Booster were second only to fruit drinks in April. The strength of this particular market also explains the success of our new diet drinks.
There were, however, big differences in the performance of our older products. The company’s oldest product, mineral water, continued to enjoy a healthy share of a very profitable mass market. It seems our customers are still happy to stay with the brand despite the increasing number of competitors’ products. Unfortunately, the same cannot be said of our Ice-T and Chocomania drinks. Sales showed an initial increase in the summer after we re-launched both products but customers soon bought other brands and total annual sales for both product ranges were disappointing.
The company also said goodbye to its own brand of cola, launched in 1998. After two unsuccessful years of trying to break into the huge cola market, 2000 looked like being another poor year. The company finally accepted that it had made a wrong decision and stopped production in September of that year.

The company’s brand of mineral water has a

A．

A. small share of a small market.

B．

B. large share of a small market.

C．

C. large share of a large market.

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题型：选择题

某商场在“五一”期间推出购物摸奖活动，摸奖箱内有除颜色以外完全相同的红色、白色乒乓球各两个．顾客摸奖时，一次摸出两个球，如果两个球的颜色相同就得奖，颜色不同则不得奖．那么顾客摸奖一次，得奖的概率是﹙ ﹚．

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题型：选择题

美国科学家用某有机分子和球形笼状分子C₆₀制成了“纳米车”，每辆“纳米车”是由一个有机分子和4个C₆₀分子构成。“纳米车”可以用来运输单个的有机分子。下列说法正确的是

A．人们用肉眼可以清晰看到“纳米车”的运动

B．C₆₀分子内只存在共价键

C．C₆₀是一种新型的化合物

D．C₆₀与金刚石互为同位素

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题型：选择题

急性血源性骨髓炎大块死骨形成的原因主要是

A．身体抵抗力差

B．骨的滋养血管栓塞

C．骨膜血管断裂

D．病理骨折

E．脓肿直接破坏骨组织

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题型：选择题

张小兰一家原来租住在李二伦所有的一套房屋内，租赁合同由丈夫王某与李一伦签订，后来王某不幸死亡。张小兰经同事介绍，与陈某再婚，并随夫搬至陈某处居住。为此，原告李一伦起诉要求被告张小兰及其女儿张亦兰二人腾退承租的住房两间。但被告二人辩称：被告张小兰虽然再婚随夫居住，因其女被告张亦兰一人仍住在承租原告的两间住房里，每星期回来两次与女儿同住。故不同意原告的诉讼请求。据此，人民法院主持双方当事人调解希望原、被告之间平息纠纷，和睦相处，但未能成功。请根据上述案情，回答以下问题。

假如本案在开庭审理时，被告张小兰、张亦兰向人民法院申请通知出庭作证的证人孙某没有到庭，经电话联系，孙某表示不想得罪人，不愿意出庭作证了。则产生以下法律后果：

A．追究孙某的妨碍民事诉讼行为的责任

B．再次通知孙某，如果孙某再不到庭，则可以拘传

C．孙某的证言将不能作为单独认定案件事实的依据

D．如果孙某不能出庭是因病住院，那么可以采取其他方式作证，不影响证言的效力

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