单项选择题

What does "girth" possibly mean ？（）

A．Measurement around an object.
B．Measurement of object weight.
C．Formula to calculate object width.
D．Formula to calculate object length.

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单项选择题

36（）

A．materials
B．places
C．temperatures
D．conditions

单项选择题

What does the author think of the password ？（）

A．It is an old system that needs improvement.
B．It provides as much security as before.
C．It should be abandoned by computer users.
D．It has developed to an advanced stage.