现场防爆防腐操作柱上一定要配置()。 ["A、按钮/开关","B、电压表","C、电流表","D、功率表"]
()是对受血者健康构成危害的症状 ["心脏病","乙肝","贫血症","糖尿病","晕眩病"]
甲向乙借钱并将自己的笔记本质押给乙。乙又将电脑出租给丙,丙玩电脑时不慎将电脑摔在地上,笔记本摔坏。问谁应向甲承担赔偿责任() ["A、乙","B、丙","C、乙和丙","D、乙赔偿后,可向丙追偿"]
玻璃瓶采血产生的潜在危险是() ["产生凝块","产生脂血","易溶血","空气栓塞","瓶子易碎"]
家禽饲料表观代谢能总是()其真代谢能。 ["大于或等于","小于","大于","等于"]
简述政府机构设置应遵循的规律。