据此估计允许参加面试的分数线大约是（  ）

九年级学生牛牛经常旷课，夜不归宿，到网吧玩游戏。后因缺钱上网，持刀抢劫，造成受害人重伤，赏到刑罚处罚。同学们对此在QQ上展开了议论，其中正确的说法有（    ）

①小兔子乖乖：乖点好耶，专心学习，遵纪守法，防微杜渐，否则害人害己

②笨笨鸟：牛牛受刑罚处罚，是因为他经常旷课、夜不归宿，笨笨鸟下次不再干了

③绿魁0茶：未成年人违法犯罪一般都是从不良行为开始的，我们应避免沾染不良行为

④一剪梅：不良行为和严重不良行为会对个人、家庭和社会造成危害，我们应引以为戒

阅读理解

    In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this: A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies,“No, thanks. I've got a good horse under me.”

    The city planners decided to build an underground drainage(排水) system, but there simply wasn't enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.

    An engineer named Ellis Chesbrough convinced the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city's streets by as much as 12 feet.

    This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice: either change the first floors of their buildings into basements, and the second stories into main floors, or hoist the entire bulidings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like the Tremont Hotel, which was a six-story brick building?

    That's where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like Tremont Hotel, Pullman would place thousands of jackscrews(螺旋千斤顶) beneath the building's foundation. One man was assigned to operate each section of roughly 10 jackscrews. At Pullman's signal each man turned his jackscrew the same amount at the same time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stayed open during the entire operation, and many of its guests didn't even notice anything was happening.

    Some people like to say that every problem has a solution. But in Chicago's early history, every engineering solution seemed to create a new problem. Now that Chicago's waste water was draining efficiently into the Chicago River, the city's next step was to clean the polluted river.