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单选题
391、在非 STE 的例句中,安全指令给出的是”注意”,但是如果了解氧气系统的话,也应知道氧气会造成爆炸。
A
In the non-STE example, caution is given in this safety description.But if you know about nitrogen systems, you also know that nitrogen can cause flames.
B
In the STE example, this safety description is given as a caution,but if you know about oxygen systems, you also know that oxygen can occur explosions.
C
In the ＇non-STE example, this safety instruction is given as a caution, but if you know about oxygen systems, you also know that oxygen can cause explosions.
答案解析
正确答案：C
解析：
解析:nitrogen 氮,氮气; oxygen 氧气,氧。
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