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【单选题】
模拟交换机在交换网络中传送的是（）。A.
模拟信号
B.
数字信号
C.
增量调制信号
D.
脉码调制信号
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】张某,静脉留置针输液第三天,今晨在输液过程中出现液体滴入不畅,局部无肿胀,检查有回血,护士应首先
A.
适当变换肢体位置
B.
更换针头重新穿刺
C.
检查管道，抬高输液瓶的位置
D.
热敷注射部位上端血管
【简答题】综合填空 Jim is a schoolboy. He is 13 years old .He’s in Class 3,Grade 1. He always 1 (get ) up early and he often 2 (go) to school by bike . He 3 (like) English,Chinese maths and some other lessons. He e...
【简答题】单词拼写。 1. He always fails exams, for he spends little time enough p ______ for his examinations. 2. Now the girl is in hospital recovering from liver f_______. 3. There were about 300 students f...
【简答题】单词拼写。 1. He is very optimistic, so he always a____________ a positive attitude to life. 2. The lady was a______________ of killing her husband when he was asleep. 3. In the end, he gave away his p____...
【多选题】保险利益是保险合同得以成立的前提,保险利益应符合的条件有( )。
A.
保险利益应为合法的利益
B.
保险利益应为经济上有价的利益
C.
保险利益应为确定的利益
D.
保险利益应为具有利害关系的利益
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