碳可以溶解在铁中形成固溶体，也可与铁化合组成金属化合物。
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加氢装置在高压空冷上游注水，容易在高压空冷内部形成水溶液状态，减缓腐蚀速率。
A. 正确
B. 错误
A vessel is “engaged in fishing” when（）.
A. her gear extends more than 100 meters from the vessel
B. she is using any type of gear，other than lines
C. she is using fishing apparatus which restricts her maneuverability
D. she has any fishing gear on board
用人单位在工作日安排劳动者延长工作时间的，支付的加班工资应当不低于工资的（）
A. 150％
B. 200％
C. 300％
D. 400％
Which of the listed materials would be considered as a bunting class "C" fire?（）
A. Fuel oil
B. Wood
Celluloid
D. Electrical insulatio
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