题目内容
电压放大器中的三极管通常工作在_____状态下，功率放大器中的三极管通常工作在_____参数情况下。功放电路不仅要求有足够大的_____，而且要求电路中还要有足够大的_____，以获取足够大的功率。
查看答案
搜索结果不匹配？点我反馈
更多问题
Fill in each blank with a suitable preposition (介词) or adverb (副词).“A cup of tea, the stronger the better” is supposed to be the British cure ________ all problems.For most of England today, tea is at 4 p.m. It starts ______ a pot of tea served with sugar and milk and includes thin slices of bread and butter.Cider, made ______ apples pressed and fermented, comes from the West Country.A steak and kidney pudding, steamed _____ hours, is a delicious and filling meal.In Cornwall potatoes and meat are packed ________ a pastry case, traditionally half-moon shaped to fit the miner’s pocket.Haggis is particular to Scotland, being made from the bits of sheep that less careful people would throw away or convert _____ dog food.Burns was obviously in favor of haggis and since anything Burns approved ______ has to be good, it has become elevated to the status of the national dish.8. The way to catch a haggis is to hide _______ a bush and jump out in front of it shouting “Boo!”
城市生活垃圾是指在城市居民日常生活中产生的固体废物，不包括为城市日常生活提供服务的活动中产生的固体废物。
《危险化学品目录(2015版)》中的危险化学品确定原则：依据化学品分类和标签国家标准，从物理危险、健康危害和环境危害的特性类别中确定。
《国家危险废物名录(2016版)》将危险废物种类调整为46大类别479种（362种来自原名录，新增117种）。
微信支付 
支付宝支付