【单选题】The tulip tree is native to the eastern United States, ______ the tallest and larges broadleaf tree.
【单选题】单次培训费用达到3000-5000元,延长服务期期限为()
【判断题】关联主义理论认为学习就是一个知识网络形成的过程,连通比建构更重要。
【单选题】Visiting Moscow was great but the temperature was 25 ______ freezing.
【判断题】家庭油锅起火可以用冷却灭火法进行及时扑救。()