资料：When a consumer finds that an item she or he bought is faulty or in some other way does not live up to the manufacturer's claims， the first step is to present the warranty， or any other records which might help. at the store of purchase. 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” 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 favor， assuming he or she has a just claim.
Consumers should complain in person whenever possible， but if they cannot get to the place of purchase， 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 demonstrate what is wrong with the item 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 advice the consumer to write to the manufacturer. If so， the consumer should do this， stating the complaint as politely and firmly as possible. If a polite complaint does not achieve the desired result， the consumer can go to a step further. She or he can threaten to take the seller to court or report the seller to a private or public organization responsible for protecting consumer's rights.
What will help make the complaint more effective? Choose the answer that is INCORRECT.
本题的问题是“什么能使投诉更有效？选择不正确的答案”。A选项“具体说明问题”；B选项“投诉要礼貌但坚定”；C选项“亲自投诉”；D选项“先做一般性陈述”。根据主题句可知，消费者在投诉的时候要说具体问题，不要做一般性陈述，故选D。
下列关于公司的表述，正确的是（）
以下各项列举了我国常见气象灾害与其发生地区的对应关系，其中正确的一项是（）
根据电视收视率调査，看体育节目的观众中青年人比中老年人要多。
由此可推断出（）
—种海洋蜗牛产生的毒素含有多种蛋白，把其中的一种给老鼠注射后，会使有两星期大或更小的老鼠陷入睡眠状态，而使大一点的老鼠躲藏起来。当老鼠受到突然的严重威胁时，非常小的那些老鼠的反应是呆住，而较大的那些老鼠会逃跑。
以上陈述的事实最有力地支持了以下哪项假说？（）
疾病控制中心对某校髙中三个年级的学生进行抽样做视力状况调查，抽样的方法为分层抽样（按比例抽样），若高中一、二、三年级学生人数分别为626、703、780，样本容量为84，则应从离二年级抽样的学生人数为多少？（）
