什么叫配合?配合种类有哪些?
参考答案:
配合是指基本尺寸相同、相互结合的孔与轴公差带之间的关系。配合有三种类型,即间隙配合、过盈配合和过渡配合。
Light bulb which was invented by Edison _________now. [ ]
A. was widely used
B. is widely used
C. will be widely used
D. used widely
处理休克病人,搬运时应采取()
A.仰卧位,头侧向一边
B.坐位或半坐位
C.仰卧位,下肢屈曲
D.去枕平卧位,抬高双下肢
E.侧卧位