单项选择题

New procedures for the operation of the security system will ______ to ensure that there are no more delays in accessing the building on weekends.

A. introduce
B. introducing
C. introduction
D. be introduced
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单项选择题
147（）

A. takes
B. features
C. accounts
D. calculates
单项选择题
The job of ______ the production process has been given to a well-known engineering consultant.
A. streamlines
B. streamlined
C. to streamline
D. streamlining
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