C．Economists and Trashmen

　　D．Misunderstanding

　　解析：选B　标题归纳题。根据整篇文章内容可知，作者是一名垃圾清理工，以前他对自己的工作不认同，但后来逐渐以自己的工作为荣。故选B。A项突出的是一次经历，比较片面。

　　C

　　(2016·江西八所重点中学联考)Griffith Observatory (天文台) is a national leader in public astronomy, and one of the most popular attractions in Los Angeles. It is located on the southern slope (山坡) of Mount Hollywood in Griffith Park at 1,134 feet above sea level.

　　Visitors may drive to the observatory and park in its parking lot or on nearby roads. No reservation (预订) is required to visit. Parking is limited, and the busiest time is weekends. Buses, taxis, and car pools are welcome. LADOT provides weekend public bus service from the Sunset/Vermont Metro Red Line Station.

　　Griffith Observatory is open six days a week. Admission and parking are free.

　　Hours of Operation

　　Tuesday－Friday

　　12 noon－10 pm

　　Saturday－Sunday

　　10 am－10 pm

　　Monday

　　Closed

　　Thanksgiving Day and Christmas Day　Closed

　　Samuel Oschin Planetarium

　　The Samuel Oschin Planetarium theater offers 8 to 10 live, half­hour presentations each day. There are usually four different shows from which to choose.

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