[问答题] 摩擦力的大小取决于流体的粘性。

J-K触发器使用了（）个LFSR。 ["1","2","3","4"] 男性，20岁，2年前因车祸致血胸住院，已治愈，今无明显诱因下突感胸闷不适。体格检查：右侧呼吸音减弱。胸片：右肺压缩90％。 此患者目前最主要的护理问题为（） ["低效性呼吸型态","心输出量减少","营养失调","舒适的改变","焦虑或恐惧"] Which three of these items are IPv6 transition mechanisms? （）(Choose three.) [" ISATAP"," NATV6"," manually configured overlay tunnels"," dual stack configuratio"] 何谓接地电流？ 线缺陷 摩擦力的大小取决于流体的粘性。