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【单选题】
关于慢性支气管炎伴阻塞性肺气肿的氧疗,错误的一项是A.
低流量给氧
B.
氧浓度控制在37％～41％
C.
氧分压维持在60mmHg左右
D.
缓解期病人PaO2＜55mmHg时需长期家庭氧疗
E.
长期家庭氧疗时每日给氧时间15小时
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【简答题】In the process of attempting to characterize a substance, a chemist makes the following observations: The substance is a silvery white, lustrous metal. It melts at 9 °C and boils at 1105 °C. Its den...
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【多选题】选择正确答案 (有重复的答案)
A.
light bulb
B.
electric wires
C.
power stations
D.
cables
E.
wires and cables 1. Electricity is produced in ______________________________. 2. _______________ underground are connected to power stations. 3. Thin _____________________________ are connected to cables. 4. Our electrical appliances are connected to _______________________. 5. Electricity comes into our houses by flowing through ______________ and cables from ___________6_________________.
【简答题】Choose the correct words in the box for the pictures and then fill in the blanks below. light bulb; electric wires ; power stations ; cables; wires and cables 1. Electricity is produced in ________...
【单选题】作为一种典型而有效的早期阅读环境，不仅是现代幼儿园教育环境不可或缺的板块，还是国内外幼儿园课程的有机组成部分。
A.
建构区
B.
B美工区
C.
C音乐区
D.
D阅读区
【多选题】幼儿园环境创设是为教育服务的，要根据幼儿身心发展的特点与需要为他们提供多层次，多侧面的教育内容与教育条件，以促进幼儿[填空(1)]健康发展，促进[填空(1)]的全面培养，促进各种[填空(1)]的积累和[填空(1)]的提高。
A.
生理与心理的
B.
智力因素与非智力因素
C.
知识经验
D.
能力
【简答题】Thin
_____________________ are connected to cables.A. power plants B. electric wires C. light bulbs D. battery charger
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