問題詳情

   Many new security measures have been established in the United States since the September 11, 2001, attacks.Police 11 their searches of people and their belongings as they enter government buildings and other places.For example, security guards at popular monuments like the Statue of Liberty are searching visitors morecarefully. Visitors’ bags 12 electronic devices. Also, tours of the White House have been cancelled as aresult of security fears. Even the streets in front of government buildings like the Independence Hall National Parkin Philadelphia 13 drivers. Across the country, police are setting up checkpoints outside of airports. Forinstance, police inspect vehicles at several key points on highways 14 Bush International Airport inHouston, Texas. The police stop drivers and ask them to open their car trunks. Even visitors to Disneyland andDisney World are stopped at the entrance gates. Police open their bags and look through them. All these securitymeasures are being taken to prevent bombings and other acts of violence. However, they make life less convenientfor many Americans.
11
(A) have decreased
(B) have investigated
(C) have intensified
(D) have encountered

參考答案

答案：C
難度：適中0.473684
統計：A(0),B(17),C(27),D(11),E(0)

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