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【单选题】
160()由维修企业进行,以检查、调整为中心内容。A.
A日常维护
B.
B一级维护
C.
C二级维护
D.
D三级维护
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】I _____ on a sofa because my grandparents have come for the weekend.
A.
slept
B.
was sleeping
C.
have slept
D.
am sleeping
【单选题】I ________ on a sofa because my grandparents have been here to spend the weekend.
A.
slept
B.
was sleeping
C.
have slept
D.
am sleeping
【简答题】I ________ on a sofa because my grandparents have been here for the weekend. [ ] A . slept B. was sleeping C. have slept D. am sleeping
【单选题】My grandparents have lived in a town near Nanjing . They enjoy their life in the town. A．for many
A.
My grandparents have lived in a town near Nanjing ____. They enjoy their life in the town. A．for many years ago
B.
since many years
C.
many years ago
D.
for many years
【单选题】My grandparents have _____ the great changes in China _____. [ ]
A.
saw, him
B.
seen, them
C.
seen, themselves
【单选题】咳痰5天,医嘱给予氧气雾化吸入治疗,。执行操作时错误的是
A.
氧气雾化吸入器与氧气装置连接紧密，不漏气
B.
氧气湿化瓶内放1/2冷蒸馏水
C.
调节氧流量6～8L/min
D.
口含嘴放入患儿口中，嘱其紧闭口唇深吸气
E.
吸入完毕，先取下雾化器再关闭氧气开关
【简答题】简述4P组合,并结合所学知识谈谈你对市场营销的认识。
【简答题】Read and choose. 阅读短文，选择正确答案。 My grandparents have a big farm in the forest. There are fif cows, eight pigs, one dog and a fat cat. The dog can swim, but it can't fly. The cat is very funny and sm...
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