户用8~10m3的沼气池每天可供多少人的炊事、照明使用?
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A.正确 B.错误 [单选题]GB/T7477-87根据《水质钙和镁总量的测定EDTA滴定法》(GB/T7477-87)测定水中钙和镁的总量时,若不能及时测定,水样应加入( ),使PH降至1.5左右。
A.每升水样加2ml浓硫酸 B.每升水样加2ml浓盐酸 C.每升水样加2ml浓磷酸 D.每升水样加2ml浓硝酸 [单项选择]患者刘女士,45岁,患肝硬化6年,近2天突然呕血约1000ml,现出现烦躁不安、言语不清、睡眠倒错,有扑翼样震颤,脑电图异常。对该患者护理措施不正确的是()
A. 低热量饮食 B. 暂停蛋白质摄入 C. 清除肠内积血 D. 生理盐水灌肠 E. 口服50%硫酸镁溶液导泻 [单项选择]电流互感器的二次侧不允许()。
A. 开路 B. 接地 C. 短路 D. 接入电流表 [单选题]华为系统中,NR小区的切换时间迟滞TimeToTrigger设置范围是()
A.0-2560 B.0-5120 C.0-640 D.0-1280 [单项选择]下列国家不是位于欧洲地区的是()。
A. 波兰 B. 捷克 C. 牙买加 D. 匈牙利 [单项选择]已知a2+a+1=0,则a2008+a2009+1=( )。
A. 0 B. 1 C. 2 D. 3 [多选题] 在销户业务中,负责对客户《供用电合同》的终止工作,并最终确认( ),拆除( )。
A. 安全供电 B. 停止供电 C. 计量装置 D. 用电设备 我来回答: 提交
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