题目内容

Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank？

A. Commence draining that tank as quickly as possible
B. Seal off all vents to that tank
C. Activate the CO2 system to that tank
D. Shut off the steam heating coils

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检测PRRS阳性抗体国际上通用且较敏感的血清学方法是()

A. ELISA试验
B. 病毒分离鉴定
C. RT-PCR
D. 补体结合试验
E. 间接免疫突光抗体

Auxiliary machinery includes all mechanical appliances and equipment on board except ()

A. the main engine
B. the boiler
C. the main engines and boilers

新鲜人粪污染了棱水，可能感染

A. 弓形虫
B. 钩虫
C. 蝈虫
D. 鞭虫
E. 溶组织内阿米巴

在核动力厂试验和运行期间，发生导致核电厂安全屏障或重要设备的性能受到严重损害或出现()工况的事件，营运单位应该向国务院核安全监管部门及其派出机构报告。

A. 明显危害安全的没有分析过的工况
B. 超出核电厂设计基准的工况
C. 在核电厂运行规程或应急规程中没有考虑的工况
D. 以上三者均包含