多项选择题

下列哪些工作内容属于布置工作地时间 A.
开动机床 B.
安装工件 C.
清理切屑 D.
润滑机床 E.
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单项选择题

Dragon King of east sea, father of Qiong Lian, plays many roles EXCEPT .

A．A. the autocratic and stubborn parents
B．B. the upper class of the feudal society
C．C. the guardian of the feudal ethics
D．D. the ruler of the land

单项选择题

Which of the following is the root of the word ambition?()

A． ambit
B． amb
C． ambi
D． it