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[单选题]
以下对于GS21O1指示灯LOS和PON描述错误的是（）
A.PON灯快闪LOS等熄灭，表示ONT正在尝试注册
B.PON灯常亮LOS等熄灭，表示ONT注册成功
C.PON灯快闪LOS等快闪，表示ONT注册中
D.PON灯熄灭LOS等熄灭，表示ONT被OLT禁用
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题目内容
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题目内容
（请给出正确答案）
A.PON灯快闪LOS等熄灭，表示ONT正在尝试注册
B.PON灯常亮LOS等熄灭，表示ONT注册成功
C.PON灯快闪LOS等快闪，表示ONT注册中
D.PON灯熄灭LOS等熄灭，表示ONT被OLT禁用
如果结果不匹配，请 联系老师 获取答案
更多“以下对于GS21O1指示灯LOS和PON描述错误的是（）”相关的问题
A.made in
B.made up
C.made out
D.made for
Hollywood (好莱坞) is a suburb of the city of Los Angeles (洛杉矶) in California. Until 1908 it was no more than a quiet village on the northern side of the city, but in that year William Selig, one of the first people to make films, set up a film-producing workshop (车间) in Los Angeles. By 1911 , David and William Horsely had set up another one in Hollywood, and at about the same time oil was discovered in the neighborhood. Thus Hollywood quickly became a big district given over to the film industry and to oil wells
The early makers of films found Hollywood a good place for their work because of its clear, sunny, rain-free weather, which allowed pictures to be taken all the year round. Also, it was known that every kind of scene needed for films, whether town, country, sea, desert or snow-capped mountains, could be found within the area of California. Today, when most films can be "shot" (拍摄) under cover by man made lighting, these advantages (优点) are not so important.
In spite of a drop in its importance, Hollywood remains a center of film production although now making more films for television than for the cinema.
David and William Horsely ______.
A．were the first to set up a film-producing workshop in Hollywood
B．discovered oil in and around Hollywood
C．followed William Selig to Hollywood and settled down there
D．turned Hollywood into a film producing center of the country
