氧气管道可以与同一使用目的的乙炔管平行敷设在不通行的地沟内，只需要用200mm厚黄沙覆盖即可。
参考答案：错
肱二头肌长头腱滑脱检查时（）。
A.屈肘90°勾外旋转时滑动
B.伸肘内外旋转时滑动
C.肩后伸前屈时滑动
D.肩外展时滑动
E.肩内收时滑动
Before he finally sent its copies off to be handed out among members of the committee, he went over it again and made sure that no item of importance was ().
A. checked out
B. crossed out
C. dropped out
D. left out
