单项选择题

The underlined phrase "dry run" in the third paragraph means______.

A．to run to work
B．to test the route in advance in person
C．not to make your feet wet on the way work
D．to walk as quickly as possible
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单项选择题
What is the purpose of writing the passage
A．To find a good friend.
B．To tell a new arrival how to please your colleague.
C．To show examples to a new arrival at work.
D．To introduce work regulation.
单项选择题
The following are good advice except ______.
A．dressing properly
B．asking what you don't know
C．offering coffee for others
D．inviting colleagues for dinner
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