单项选择题

The title that best expresses the theme of the passage is "______" .

A．U. S. Adopts New Immigration Security System
B．Other Countries Strongly Oppose US-VISIT System
C．New System Brings Many Benefits to Visitors
D．Powell Defends Immigration Security Procedures
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单项选择题
The expression of streamline the process ( Line 3, Para. 1) is used in the passage to refer to
A．pushing the process forward at a great speed
B．giving a streamlined form to the process
C．making the process simplify and more efficient
D．having the process move more quickly as a stream
单项选择题
Powell's statement in the last paragraph implies that ______.
A．the security system might cause a long delay at the airports
B．most of the passengers show their understanding to the new measures
C．the U.S. would keep anyone out of the country if it is necessary
D．citizens from other countries are all required to take their fingerprints
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