His thesis at the Navy Academy was in the unheard-of topic of liquid-fuel engines. After graduation, he hoped to specialise in this pioneering new technology.
EventTarget: addEventListener() — MDN Web Docs (capture phase)
，详情可参考搜狗输入法2026
人民警察的回避，由其所属的公安机关决定；公安机关负责人的回避，由上一级公安机关决定。
Some are wrapped up in scarves and woolly hats, while others are sitting in deckchairs, eating picnic lunches and playing music as they get ready to watch the chart-topping singer Raye in action.