【多选题】下列属于婴幼儿细菌性传染病的是______。
【单选题】对于外眼的观察,通常选用的放大倍率为( )。
【简答题】稳定工况包括( )、小负荷工况、( )、大负荷和全负荷工况。
【单选题】Your proposal that they ____________ their conversation in French is quite reasonable.
【判断题】Being familiar with the surroundings has a positive effect on your presentation.
【简答题】What’s the advantage of traveling in a way that integrates you into your new surroundings?
【简答题】A.pay B.promotion C.environment D.surroundings