德育过程的基本矛盾是社会通过教师向学生提出的道德要求与（）之间的矛盾，这是德育过程中最一般、普遍的矛盾。 ["学生已有品德水平","教师的道德教育水平","学生被期望的品德发展水平","社会的整体道德水平"]
Shopping habits in the United States have changed greatly in the last quarter of the 20th century. （1） in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was （2） on both sides with many （3） businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. （4）,some shops offered （5） .These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. （6） in the 1950s, a change began to （7） .Too many automobiles had crowded into Main Street （8） too few parking places were （9） shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces （10） the city limits. Open space is what their car-driving customers needed. And open space is what they got （11） the first shopping centre was built. Shopping centres, or rather malls, （12） as a collection of small new stores （13） crowded city centres. 14 by hundreds of free parking space, customers were drawn away from （14） areas to outlying malls. And the growing （16） of shopping centres led （17） to the building of bigger and better瞫tocked stores. （18） the late 1970s,many shopping malls had almost developed into small cities themselves. In addition to providing the （19） of one stop shopping, malls were transformed into landscaped parks, （20）benches, fountains, and outdoor entertainment.
请在7处填上正确答案（） ["be taking place","take place","be taken place","have taken place"]
简单随机抽样
市场预测基本内容是什么？
西方世界历史最久、影响最大的公共广播电视机构是（） ["法国广播电台","德国公共广播联盟","英国广播电台","德国电视二台"]
离心泵内存有气体，使泵吸不上液的现象叫（）。
