单项选择题

Braille, the universally accepted （） of writing used by blind persons, consists of sixty three characters.

A．mode
B．system
C．pattern
D．scheme

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单项选择题

Several experts have been called in to plan （）for boating, tennis, refreshments and children's games in the projected town park.

A．set
B．facility
C．equipment
D．application

单项选择题

His letter was so confusing that I could hardly make any （） of it whatsoever.

A．meaning
B．sense
C．message
D．explanation

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