题目内容

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

A. endanger
B. dangerous
C. danger

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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

No doubt there are dangers in _________ a two-wheeled

A. ride
B. riding
C. rode

海水中的盐是指

A. 无机盐
B. 食盐

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