【简答题】半导体二极管的基本特性是什么?它在电子电路中的基本作用是什么?
【单选题】李某,男。十天前无明显诱因急起精神失常,表现为兴奋话多,无故指责他人,易怒,顺心就发脾气,骂人,不能正常劳动,四处乱走,称要做生意,赚大钱,有钱即乱挥霍,夜间睡眠少,诊断为躁狂症。该患者应首选下列何药治疗( )
【单选题】She behaved (行为)( )she( )the boss.
【单选题】Of course she behaved awfully in front of the guests, but ______ she is much younger than him. [ ]
【单选题】螺栓联接结构设计中,被联接件与螺母和螺栓头的接触面需要加工的原因是( )
【单选题】She behaved ______ she were the boss.
【判断题】()装车时应在不同客户或门店之间做区别表示
【单选题】. It is unbelievable that a well- behaved gentleman ______ be so rude to a lady.