当然，还有24 个行业加大了研发投入力度——包括排名领跑的四大行业。其中，汽车制造业的表现尤为突出——在披露研发企业数量微增3%的情况下，研发投入同比增幅达到17.29%，排名也从上年第五跃至第三。
- satisfiable: Boolean. True if the formula is satisfiable
，推荐阅读搜狗输入法下载获取更多信息
* Android 平台的ByteArray类型实现
This Tweet is currently unavailable. It might be loading or has been removed.，详情可参考同城约会
Exec runs a command and returns its exit code:
"A lot of people use the online world as a place where they can talk about things that they might not feel safe talking about with people in the real world, where being queer might result in being prosecuted," he told the BBC.，这一点在同城约会中也有详细论述