货运票据封套内运输票据的正确完整，除卸车站或出口国境站外，不得拆开封套，特殊情况除外。
参考答案：对
氨可以燃烧和爆炸，当空气中氨的体积分数达到（）时，可以引起爆炸。
A.16%~25%
B.11%~14%
C.6%~10%
D.1%~5%
Don't _____ my bread . I want to eat it now. [ ]
A. take to
B. take off
C. take away
__ my bread . I want to eat it now. [ ]
to