题目内容

We must __________ the protection in technology, law, and other aspects

A. stong
B. strength
C. strengthen

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Mobile payment often needs to be bound ________ the user's bank card

A. by
B. with
C. in

This may __________ the security of the user's property.

A. endanger
B. dangerous
C. danger

Its basic principle is to compare the information _____ the data stored in the cloud

A. to
B. between
C. with

If the information is ________, a series of severe results may occur.

A. leaking
B. leaked
C. leak