【简答题】[ A] theorize [ B] originate [ C] invent [ D] propose
【判断题】在剧烈运动时,心力储备不足往往成为限制最大有氧运动能力的关键因素。
【判断题】渐变镜的远用参考圈是检测渐变镜远用屈光力的区域。
【单选题】普通杂货船与集装箱船与相比,具有以下特点:
【单选题】普通杂货船与集装箱船与相比,不具有以下特点()。
【判断题】Accounsts receivable turnover measures how many times a company's inventory has been sold during the year.
【简答题】[A] order [B] invent [C] produce [D] appreciate