低水平
新冠低水平流行期 儿童不用戴N95口罩?
“我强调一下,医用防护口罩(N95口罩)如果戴的时间长了是有害处的,它会使孩子缺氧,影响身体发育,包括心脑的发育,也影响记忆。”在今晚8点开始的“科普一下·防护系列谈”直播节目中,国家卫生健康委新型冠状病[详细]
2023-02-24 15:12 分类:问答Enable Media Volume Slider in Android application
Some Android programs trigger the \"media volume\" slider when the hardware volume up/down buttons are pressed. My application seems to set the ringer volume when the hardware buttons are pressed.[详细]
2022-12-28 13:28 分类:问答