皮皮学，免费搜题
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搜题
【单选题】
数控机床故障按发生部位可分为( )A.
破坏性和非破坏性
B.
有报警显示和无报警显示
C.
电气故障和机械故障
D.
关联故障和非关联故障
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】患者男,60岁。肺癌晚期,表现为极度消瘦,卧床,生活无法自理,由鼻饲喂食,静脉营养,患者可能出现的下列问题中,发生可能性最大的是
A.
口腔感染
B.
肺部感染
C.
压疮
D.
静脉炎
E.
双下肢血栓
【简答题】People of ancient Egypt and Europeans of the Middle Ages ．
【单选题】People living in the desert choose to keep their ancient lifestyles and customs, _______people in cities throw away their cultural traditions.
A.
when
B.
if
C.
unless
D.
while
【简答题】阅读理解。 How did ancient people tell time? ◇Natural ways of keeping time In ancient time, people had to use the sun and the moon to tell time. They got up when the sun came up and worked in the fields un...