【单选题】What does "listen for gist" mean?
A.
Try to figure out the details as best as you can.
B.
Try to grasp the main idea or the general picture.
C.
Try to find out the specific points of the story.
D.
Try to understand every word of the passage.
【多选题】下列哪些方法是常用的随机抽样方法( )。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】电子控制液压式动力转向系统,是根据( )的变化,来调整动力转向器,使转向操纵力达到最佳。
【简答题】书本P44页第15题:为什么必须在主机和外设之间设置I/O接口?