题目

第二节  信息匹配(共5小题；每小题2分，满分10分) 阅读下列应用文及相关信息，并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。 首先，请阅读下面有关购车的五条建议： 5 steps to getting the best price in buying a new car. Ideally, a dealership should help you find the right vehicle at a fair price. But some dealers place more emphasis on their profit margins than on satisfying their customers. Read the following situations and match the advice with them. 56. Many dealerships prey on the unprepared. Going i 19．下列不能体现生物正在进化的是 A．在黑褐色环境背景下，黑色桦尺蠖被保留，浅色桦尺蠖被淘汰 B．杂交育种过程中，通过不断地自交、筛选和淘汰使得纯合矮秆抗病小麦比例越来越高 C．杂合高茎豌豆通过连续自交导致后代纯合子频率越来越高 D．青霉菌通过辐射诱变产生了青霉素产量很高的菌株