【单选题】使用水准仪过程中,水准管轴和视准轴的理想关系是
【简答题】II. Fill in the blanks with the expressions below, change the form where necessary. illustration; gather one’s thoughts; chat; admission; hang up on; undoubtedly; soak up; keep---from; hem and haw; co...
【简答题】2 Complete the sentences. ► I went for a swim in the sea . 1 We sat on the ____ and looked at the sea. 2 We ____ a bus to the mountains, and then
____ for a walk. 3 We ____ an apartm...
【简答题】While at the park one day, a woman sat down next to a man on a beach near a playground. “That’s my son over there,” she said, pointing to a little boy in a red sweater who was gliding(滑行) down the sli...
【单选题】We sat on the beach to watch the sun ___ early in the morning .
【判断题】一条复位指令只能对同一个存储区 的一个位或多个位(最多 255 个)置 0 ,若是对多个位操作时,这些位必须是连续的位。