题目内容

各种电缆按规定敷设吊挂,合格率不低于90%。()

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机电小型电器设备完好率不低于90%。()

高压控制设备装有短路、过负荷、接地和欠压释放保护。()

—Write a memo of words to your boss to include:
—a request to go on the course
—some details about the course(e, g. date, cost)
—why you think the course wilt be useful.
—Write 40-50 words on a separate sheet.

井上下对照图每季度填绘1次,图面表达和注记无矛盾。()

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