题目内容

开胸手术麻醉中行控制呼吸,可能引起()

A. 通气与血流比值减少
B. 通气与血流比值先减少后增大
C. 通气与血流比值不变
D. 通气与血流比值先增大后减少
E. 通气与血流比值增大

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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

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

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