（二）采取预收款方式提供建筑服务；
"Launching radioactive material through the Earth's atmosphere brings safety concerns. You have to have a special license to do that, but it is not insurmountable," says Dr Simeon Barber, planetary science specialist at the Open University.
。业内人士推荐同城约会作为进阶阅读
中小商户的转型工具箱：从“卖床位”到“卖体验”。业内人士推荐heLLoword翻译官方下载作为进阶阅读
As one commenter wrote: "This is the most i've heard this man talk in YEARS." More of this plz.