皮皮学，免费搜题
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搜题
【判断题】
控制系统包括包含了高层次的外围接口与低层次的工厂接口。A.
正确
B.
错误
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
【简答题】I’m very tired. I _______ on the night shift for several weeks. A．worked B．had worked C．have been working D．have worked
【简答题】the Odyssey could have been the work of a single poetic genius.
【简答题】crescendo(cresc.)是表示( )
【单选题】How many men does your uncle _____ for him?
A.
have worked
B.
have to work
C.
have working
D.
have been working