Under the Visa Waiver Program A.any people of the UK can get visas issued at the airports.

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Under the Visa Waiver Program,

A.any people of the UK can get visas issued at the airports.

B.the UK businessmen may enter the U.S. without visas for a short stay.

C.all people from any country can apply for e-passport easily.

D.all short-term students don"t need to get visas beforehand.

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗