【简答题】将L=20mH的电感元件,接在频率f=50Hz的交流电源上,则其感抗大小为()Ω。
【判断题】With credit cards, you can collect points and with points you can get money back or free gifts, so you will come again very soon.
【简答题】每个谈判人员都必须牢牢记住这样一个真理:利益从主观的本质角度讲就是一种需求,其首要是对物质利益的需求,而谈判则是协调关系的一种行为,在这个协调过程中,最重要的,最基本的是协调双方的( )
【单选题】《地下铁道设计规范》规定:正线的最大坡度宜采用( )
【判断题】When you pack for a four-day trip, take a big suitcase or a heavy backpack with you so you can save money because you can use public transport with ease.
【简答题】You can use any printer if you handle it with care. You can use the one you like. You can use whichever printer ________.
【单选题】《地下铁道设计规范》规定,正线的最大坡度宜采用()。
【简答题】You can stay with us. You can play football with Sam. You can _______stay with us _________play football with Sam.