单项选择题

During the period of the first Industrial Revolution, machines were invented, so the focus of education in that period moved to ______ and technology. （ ） A. theory B. skill C. natural science D. Language

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The difference between 'facts' and 'theory' ______.A.is non-existentB.is that the latter needs confirmationC.rests on the simplicity of the formerD.is the difference between the modern scientists and the ancient Greeks
A.A.is
B.is
C.rests
D.is
单项选择题
在给病人鼻饲插管时,如果病人呛咳,呼吸困难,正确处理的方法是A. 嘱病人深呼吸B. 嘱病人做吞咽动作C. 托起病人头部再插D. 拔出管子,休息缓解后重新插管E. 停止操作,取消鼻饲
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