单选:加油机内壳空间属于()。A.0级爆炸危险区域B.1级爆炸危险区域C.2级爆炸危险区域D.火灾危险区域

题目内容:
加油机内壳空间属于()。
A.0级爆炸危险区域
B.1级爆炸危险区域
C.2级爆炸危险区域
D.火灾危险区域
参考答案:

Either you must improve your work, or I shall dismiss you.

Either you must improve your work, or I shall dismiss you.

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