什么是间接目视检验？

When a consumer finds that something he or she bought is faulty or in some other way does not live up to what the producer says for it, the first step is to present the warranty, or any other records that might help, at the store of buying. In most cases, this action will produce results. However, if it does not, there are various means the consumer may use to gain satisfaction.

A simple and common method used by many consumers is to complain directly to the store manager. In general, the "higher up" the consumer takes his or her complaint, the faster he or she can expect it to be settled. In such a case, it is usually settled in the consumer’s favour taking it as true that he or she has a just right.

Consumers should complain in person whenever possible, but if they cannot get to the place of buying, it is acceptable to phone or write the complaint in a letter.

Complaining is usually most effective when it is done politely but firmly and especially when the consumer can show clearly what is wrong with what was bought in question. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example, "The left speaker does not work at all and the sound coming out of the right one is unclear" is better than "This stereo does not work. "

The store manager may advise the consumer to write to the producer, if so, the consumer should do this, setting the complaint as politely and as firmly as possible. But if a polite complaint does not achieve the expected result, the consumer can go a step further. He or she can threaten to take the seller to court or report the seller to a public organization responsible for protecting consumers rights.

If a consumer wants a quick settlement of his problem, it’s better to complain to().

A．a shop assistant

B．the producer

C．a public organization

D．a store manager

北京人进化最快的部分是（）。

A、大脑

B、手

C、下肢

D、头骨

(一)
马东于2009年12月在本市一火锅城与妻子、九岁女儿一起进餐时，燃气灶突然爆炸，将马东妻子、九岁女儿烧成三度重伤，导致终身残疾，同时将邻桌的肖明烧伤。事后，马东找火锅城索赔，火锅城认为是燃气灶本身的缺陷所致，应找商家和厂家赔偿。但马东到电子商场多次交涉，电子商场百般推脱，说商场只负责销售，产品质量问题应找厂家。马东找市厨房设备厂交涉，厨房设备厂认为是顾客使用不当所致。在火锅城、商家和厂家均不愿赔偿的情况下，马东向当地法院起诉。

本案受害人的索赔对象( )。

A．只能是电子商场

B．只能是市厨房设备厂

C．既可以是电子商场或市厨房设备厂，也可以是火锅城

D．既不是电子商场也不是市厨房设备厂

除IgM外，（）型抗体也能激活补体系统

A.IgY

B.IgA

C.IgE

D.IgG

增塑剂的作用主要是改善环氧树脂胶硬化后的（），提高抗弯抗冲击韧性。

A、硬度

B、刚性

C、脆性

D、柔性