单项选择题

In Redwood City, police can hear gunfire within（）

A．five seconds
B．seven seconds
C．seven minutes
D．thirty seconds

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单项选择题

The red dot on the police map shows（）

A．the address of the criminal
B．Redwood City
C．the capital of California
D．the location of the gunfire

单项选择题

According to the author, Webster's purpose in writing An American Dictionary of the English Language was to （）

A．respond to the need for new schoolbooks
B．show the distinct development of the English language in America
C．improve spelling forms based upon British models
D．influence the pronunciation of the English language