在使用千斤顶过程中,必须严格保持支撑面与千斤顶轴线()。
参考答案:垂直
根据首字母或者中英文提示,用正确形式填空。
小题1:There is a bag in the hall. It must (属于) to Cathy.
小题2:Jack (更喜欢) the music that has great lyrics.
小题3:She (梦到)that one day she would be famous.
小题4:Bill Gates donated m of dollars in 2010.
小题5:The dog’s d makes me very sad.
小题6:To be honest, I only eat food that t__________ good.
小题7:Finally, she made a (decide) to teach in the poor village.
小题8:Through the Internet, we can (easy) get the information that we need.
小题9:Our teachers often tells us the (important) of learning how to learn.
下述哪项情况不宜作气管切开()
A.喉头水肿的呼吸困难
B.急性喉炎的呼吸困难
C.颅脑损伤后的呼吸困难
D.张力性气胸的呼吸困难
E.呼吸道烧伤的呼吸困难