After you stop a channel, you can no longer query its length.

If the channel is currently playing, returns true. Otherwise returns false.

如果这个音轨当前正在播放, 返回真. 否则返回假.

Lupus erythematosus associated with erythema multiforme: Report of two cases and review of the literature

红斑狼疮伴发多形红斑：2例病例报道及文献综述

Analysis of 18 cases of major erythema multiforme and toxic epidermal necrolysis

重症多形红斑及中毒性表皮坏死松解症18例临床分析

Analysis of 18 cases of drug-induced major erythema multiforme

药源性重症多形红斑18例临床分析

Objective: To discuss the role of nursing in the treatment of severe erythema multiforme.

目的：探讨护理在重症多形红斑治疗中的作用。

Clinical analysis of 19 children with erythema multiforme major

儿童重症多形性红斑19例

Methods: The nursing of18 severe erythema multiforme patients were summarized.

方法：对18例重症多形红斑住院患者的护理进行总结。

Conclusions: Syndrome differentiation and treatment shows a better therapeutic effect for erythema multiforme.

结论：辨证论治多形红斑疗效显著。

He picked up his bag and hurried off along the platform.

他拿起提包急急忙忙地沿着站台走了.

At which platform does the train from London get in?

伦敦来的火车进哪个站台?

The rail is commonly protected by wood at the two sides.

铁轨的两边通常都要用木板防护起来.

Then the railroad building era really began.

铁轨也在慢慢向北延伸.

Airlinepassanger , passenger free craft freight traffic has dropped in 2009 for the first time since 2001.

2009年的航空运输客运 、 货运总量自2001年来首次下降.

Suggest three reasons why most freight traffic is consigned by road.

举三个例子说明,为什么大多数航空运输会与公路运输联运.

Secondly, aviation Transport routes, transportation distance, less costly fare.

其次, 航空运输线路少, 运输距离远, 票价昂贵.

Alive bound aviation carries a territory, collaboration and alliance are development trend.

在世界航空运输领域, 合作与联盟是发展趋势.

ROUTE: Fly along east coast of Hainan Island.

航路: 沿海南岛东海岸飞至目的地.

The ocean lanes are always busy.

远洋航路总是很繁忙.

We have encountered thunderstorm in route.

我们在航路上遇到雷雨.

The two lights led in.

这两盏信号灯指示入港的航路.