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当前学科：发电厂集控运行技术考试
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什么是DEH的控制速率？
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为保障顾客正常使用防伪税控开票子系统，同时对技术服务工期程师的服务工作进行监督，各服务单位在为顾客提供安装服务后（）内至少安排一次电话跟踪。
对2~3岁幼儿进行定期体格检查的时间是
患者，46岁。近3个月来出现厌食、恶心、腹胀、肝区不适，为明确诊断需做肝功能检验。下述中标本采集不正确的步骤是()
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Maggie Banes looked __26__at her watch—as she had done every few minutes for the last three hours. __27__ it was nearly eight o'clock. 'Where on earth is Jill?' she thought.'It isn't like her to be so late.’__28__，she picked up the plate of sandwiches she'd made for tea and went to the kitchen. __29__the door opened and Jill walked into the house. She looked tired. 'What a relief! Are you OK?' said Maggie loudly. 'Yes, I'm fine, Auntie,'replied Jill. 'I'm so sorry I'm late, but something strange happened on the way here.'__30__，Jill explained that, in her hurry to get through the woods, she had tripped and knocked herself unconscious. When she woke up, she realised she was lost. 'I walked around for ages until I found the right path. Then I ran alt the way here.A. ReluctantlyB. Just thenC. anxiouslyD. To her aunt’s amazementE. She was dismayed to see that
男孩，5岁，发热4天伴抽搐3次，低～中度发热，有流涕及轻度咳嗽。近1天出现抽搐，每次3～5分钟，抽后神志不清。体检：感染中毒症状轻，昏睡状，咽部充血，呼吸尚平稳，无皮疹，双侧瞳孔等大等圆，对光反射存在，心肺无异常，颈阻力阴性，克氏征及布氏征阴性，巴氏征阳性。血常规：WBC4．2×10／L，N0．46，L0．54。脑脊液的典型改变为（）