The fact that most Americans live in urban areas does not mean that they reside in the center of large cities. In fact, more Americans live in the suburbs of large metropolitan areas than in the cities themselves.
The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs.
According to the Bureau, the political boundaries are less significant than the social and economic relationships and the transportation and communication systems that integrate a locale. The term used by the Bureau for an integrated metropolis is an MSA, which stands for Metropolitan Statistical Area. In general, an MSA is any area that contains a city and its surrounding suburbs and has a total population of 50,000 or more.
At the present time, the Bureau reports more than 280 MSAs, which together account for 75 percent of the US population. In addition, the Bureau recognizes 18 megapolises, that is, continuous adjacent metropolitan areas. One of the most obvious megapolises includes a chain of hundreds of cities and suburbs across 10 states on the East Coast from Massachusetts to Virginia, including Boston, New York, and Washington, D.C. In the Eastern Corridor, as it is called, a population of 45 million inhabitants is concentrated. Another megapolis that is growing rapidly is the California coast from San Francisco through Los Angeles to San Diego.

The underlined word "adjacent" in the last paragraph is closest in meaning to ______.

A．beside each other

B．growing very fast

C．the same size

D．densely populated

《医疗卫生机构医疗废物管理办法》中规定，不具备集中处置医疗废物条件的农村，医疗卫生机构未按照《医疗废物管理条例》和本办法的要求处置医疗废物的，由县级以上地方人民政府卫生行政主管部门责令限期改正，给予警告；逾期不改的，处多少元罚款；造成传染病传播的，由原发证部门暂扣或者吊销医疗卫生机构执业许可证件；构成犯罪的，依法追究刑事责任（）。

A.处1000元以上，2000元以下

B.处1000元以上，3000元以下

C.处1000元以上，5000元以下

D.处5000元以上，10000元以下

E.处10000元以上