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{{B}}Security and Privacy on Walmart.com{{/B}}

How We Protect Your Privacy:
The security of your personal information is very important to us. We never sell or rent your personal information to any third parties under any circumstances. We value your trust very highly, and will work to protect the security and privacy of any personal information you provide to us and will only use it as we have described in Privacy Policy. Safe Shopping at Walmart.com:
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Verified by Visa:
Walmart.com supports Verified by Visa (VbV), a security technology that authenticates (鉴别) your Visa card and ensures that only the authorized cardholder is placing the order. If the bank that issued your Visa card supports VbV, you will be prompted to enter your password or to sign up for VbV as you check out.

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Security concerns have prompted the federal departments of State and Homeland Security to tighten the process for issuing visas and to impose rigorous new monitoring procedures for many international students once they enter the United States. Colleges have struggled to comply with new reporting requirements and deal with admitted students whose entry into the country has been delayed by the new procedures.
One result of these problems has been a renewed discussion of the presence of substantial numbers of international students on U.S. campuses. Anecdotal reports suggest that the number of new internati6nal students entering the United States is declining.
The downward trend is consistent with data on the number of student visas being issued by the State Department. Applications by Arab and Muslim men and those of any student seeking to study science had to be sent to Washington for review, and men fro
A. Because the new reporting requirements demand so.
B. There is a large number of international students on U.S. campuses.
C. Because of its concern of civil security.
D. There are too many students applying to study in U.S..

[单项选择]A ) how B) where C)when D )whether

[单项选择]A. How to analyze photographic techniques.
B. How to define photography.
C. How Alfred Stiedlitz contributed to the history of photography.
D. Whether photography is superior to other art forms.

[单项选择]A. How to get home. B. How to take a taxi.
C. When they should go home. D. Why they are so late.

[单项选择]A. Fine. How are you B. How do you do Glad to meet you, too.
C. How are you.’ Thank you! D. Nice. How are you