不稳定物质（）时，若温度超过某一极限值，则有可能发生分解爆炸。

The appeal of advertising to buying motives can have both negative and positive effects. Consumers may be convinced to buy a product of poor quality or high price because of an advertisement. For example, some advertisers have appealed to people’s desire for better fuel economy for their cars by advertising automotive products that improve gasoline mileage. Some of the products work. Others are worthless and a waste of consumers’ money.

Sometimes advertising is intentionally misleading. A few years ago, a brand of bread was offered to dieters (节食者) with the message that there were fewer calories (热量单位，卡路里) in every slice. It turned out that the bread was not dietetic (适合节食的), but just regular bread. There were fewer calories because it was sliced very thin, but there were the same number of calories in every loaf.

On the positive side, emotional appeals may respond to a consumer’s real concerns, considering fire insurance. Fire insurance may be sold by appealing to fear of loss. But fear of loss is the real reason for fire insurance. The security of knowing that property is protected by insurance makes the purchase of fire insurance a worthwhile investment for most people. If consumers consider the quality of the insurance plans as well as the message in the ads, they will benefit from the advertising.

Each consumer must evaluate her or his own situation. Are the benefits of the product important enough to justify buying it Advertising is intended to appeal to consumers, but it does not force them to buy the product. Consumers still control the final buying decision.

The passage is mainly about（）

A. how to make a wise buying decision

B. ways to protect the interests of the consumer

C. the positive and negative aspects of advertising

D. the function of advertisements in promoting sales

eBay网站是属于（）拍卖网站。

A.普通消费品

B.特殊消费品

C.B2B

D.B2G

请用下面提供的材料为依据，以汉水区建设局的名义向上级主管部门撰写一份请求批准类请示的正文部分。要求：(1)遵守请示的行文规则； (2)理由要充分，要求要合理； (3)格式要正确，语言要得体。【材料】 市民期盼更多管线入地“在我所在的汉水区工业路、工业一路都刚刚经过改造，但路旁仍有很多木电线杆、水泥线杆。很多路段改造都是管线同步入地，为什么这里不行呢”昨日，××市市民熊先生致电本报诉说心中的不解。记者在这几个路段看到，熊先生所称的道路已经完成刷黑，有的正在铺设人行道。路两边的人行道上，确有两排电线杆，上面密布的各种缆线与修葺一新的路面形成鲜明对比。附近不少市民有与熊先生类似的疑问。汉水区建设局相关负责人解释，管线入地耗资巨大。通常主干道或者景观路段的改造，会有这方面的经费安排。次干道拓宽以后如果电线杆立在马路当中，也会管线入地。这两条路属次干道，但电线杆在人行道上，故暂时没有管线入地计划。该负责人还介绍说，这几个路段地处繁华商业区，关乎城市形象，确有一定的特殊性；其管线入地工程约需800万元资金。他表示，接受市民建议，立即着手向上级请示，力争早日给市民一个满意的答复。

翼内肌的止点是（）

A.颞窝及颞深筋膜深面

B.喙突及下颌支前缘直至第三磨牙远中

C.上下颌骨第三磨牙牙槽突的外方和翼突下颌缝

D.下颌角内侧面及翼肌粗隆

E.翼外板的外侧面

结合案例与工作实践植物色彩与形体设计在实践中的应用性？