【单选题】下列关于恐龙灭绝原因的叙述,你认为最有可能的是( )
B.
地球上出现了比恐龙更庞大,更凶猛的动物,它们将恐龙统统消灭
C.
由于全球性的地壳运动,将所有大小恐龙活活掩埋
D.
小行星撞击地球,导致地球大气中尘土弥漫,植物光合作用几乎停止,使恐龙没有食物来源而相继死去
【判断题】Instructional design is different from the script of the teacher’s lecturing or the teacher’s instructional language. ( )
【简答题】机械图样按机器的组成件分类,主要有零件图和
【单选题】To make immigrants comfortable _______ police for help, more than 70 cities now bar police from asking them to prove their legal status.
【判断题】近几年推出的电脑很多采用的都是UEFI的主板,这种主板需要进行u盘启动设置进入启动菜单界面。
【单选题】To make immigrants comfortable ________ out to police for help, more than cities now bar police from asking them to prove their legal status.
【单选题】机械图样按机器的组成件分类,主要有零件图和( )
【判断题】It is not reasonable to start an instructional design from the design of teaching procedure. ( )
【单选题】中生代是恐龙繁盛时代,可是后来灭绝了,灭绝的原因一般是 [ ]