单项选择题

According to the text, the White House

A．has acknowledged its fault.
B．didn't receive the warning of the hijacking.
C．warned its departments of the new attack.
D．was unable to assess the situation correctly.

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单项选择题

The basic reason for the mistake Washington has committed is that

A．it ignored the information from FBI.
B．it did not pull together information.
C．it did not communicate with other countries.
D．it made slow responses to 9·11.