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数字式欧姆表测量电阻通常采用（）来实现。
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在控制线路中，常采用（），主要用于线路中的保护环节。
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交寄国内特快专递邮件，在选择内件性质时，应在相关详情单的选择处打（）。
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注水泵机组与机组、机组与墙壁的净距，应满足机泵装卸、检修的需要，且不宜小于（）。
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使用的机油不合要求，应按不同的季节使用（）规格牌号的机油。
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引起沙门菌属食物中毒的食品主要是（）
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患儿7岁，患肾病综合征已2年，激素治疗，近2天发热，体温40℃，精神萎靡，皮肤可见散在丘疹、疱疹，疱内色清。下列护理措施中哪项不妥（）。
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化政文化
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As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___1___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___2___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to stay up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie awake for a long time, hoping to get a short ___3___ at Father Christmas. Last Christmas, my wife and I successfully hid a few large presents in the storeroom. I ___4___ the moment when my son, Jimmy, would ask me where that new bike had come from, but ___5___ he did not see it. On Christmas Eve, it took the children hours to go to sleep. It must have been nearly ___6___ when my wife and I went quietly into their room and began filling stockings. Then I pushed in the ___7___ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___8___ to get up early. At about five o’clock the next morning, we were woken by loud sounds coming from the children’s room — they were shouting excitedly! Before I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. Even the baby arrived. He moved ___9___ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___10___. The day had really begun with a band! ___4___内应选（）
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关于上肢的静脉正确的是（）。