单项选择题

To remove jammed paper from the printer, ______ lift up the plastic panel and press the button marked "Jam".

A．simplify
B．simple
C．simply
D．simplistic
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单项选择题
The advisory committee ______ announced that up to thirty percent of the company s workforce would have to be let go.
A．regrettable
B．regretfully
C．regret
D．regretful
单项选择题
Mr. Jones has been accused of distributing several important ______ memorandums to persons outside the company.
A．integral
B．independent
C．incapable
D．internal
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