诊断颅底骨折的主要依据是()
A.受伤时着力部位
B.颅高压表现
C.临床表现
D.意识障碍
E.颅骨X线平片
参考答案:C
以下工程实例中,属于刚度问题的是()
A.起重钢索被重物拉断
B.车床主轴变形过大
C.齿轮轮齿被破坏
D.千斤顶螺杆因压力过大而变弯
The teacher stressed again that the students should not _____ any important details while retelling the story.[ ]
A. leave off
B. leave out
C. leave for
D. leave over